CN221280196U - Tunnel deformation long-term monitoring device - Google Patents
Tunnel deformation long-term monitoring device Download PDFInfo
- Publication number
- CN221280196U CN221280196U CN202323243219.8U CN202323243219U CN221280196U CN 221280196 U CN221280196 U CN 221280196U CN 202323243219 U CN202323243219 U CN 202323243219U CN 221280196 U CN221280196 U CN 221280196U
- Authority
- CN
- China
- Prior art keywords
- light source
- tunnel
- term monitoring
- monitoring device
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007774 longterm Effects 0.000 title claims abstract description 65
- 238000012806 monitoring device Methods 0.000 title claims abstract description 62
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a tunnel deformation long-term monitoring device; the device comprises a shell, a first measuring light source, a second measuring light source, a positioning light source and a control main board, wherein the first measuring light source is arranged at the upper part of the shell at a preset included angle, the second measuring light source is arranged at the lower part of the shell at a preset included angle, and the first measuring light source and the second measuring light source are both used for emitting structural light to form a structural light curve on the inner wall of a tunnel and the ground together; the positioning light source is longitudinally arranged on the side wall of the shell, emits target light and is used for positioning the position of the tunnel deformation long-term monitoring device; the control mainboard is arranged in the shell, and is electrically connected with the first measuring light source, the second measuring light source and the positioning light source, and is used for controlling the first measuring light source, the second measuring light source and the positioning light source and is used for being in communication connection with the measuring service end. Whether the vault, the side wall and the roadbed of the tunnel deform or not can be judged in real time and in an omnibearing manner. The device has the advantages of simple structure and high measurement accuracy.
Description
Technical Field
The utility model relates to the technical field of tunnel deformation detection, in particular to a tunnel deformation long-term monitoring device.
Background
The tunnel, tunnel and urban subway are at the operation period, and its tunnel inner wall and road bed can produce certain deformation owing to the effect of external force, grasp deformation data in real time and have important meaning to the safety control of tunnel, and the monitoring devices who adopts among the prior art includes various sensing devices, and the installation wiring is complicated, and can not acquire tunnel deformation information in real time, also can not all-round acquire the tunnel in deformation information, has certain monitoring blind area, and human interaction nature is poor, can not satisfy current informationization, intelligent monitoring demand.
Disclosure of utility model
The utility model mainly solves the technical problems of low measurement accuracy and complex structure by providing a tunnel deformation long-term monitoring device which can not monitor tunnel deformation information in real time and in an omnibearing manner.
In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a tunnel deformation long-term monitoring device which is used for long-term monitoring of an operation tunnel and installation monitoring along with tunnel excavation movement of a construction tunnel, and the device comprises a shell, a first measuring light source, a second measuring light source, a positioning light source and a control main board, wherein the first measuring light source is arranged at the upper part of the shell at a preset included angle, the second measuring light source is arranged at the lower part of the shell at a preset included angle, and the first measuring light source and the second measuring light source are both used for emitting structural light and jointly form a structural light curve on the inner wall and the ground of the tunnel; the positioning light source is longitudinally arranged at the side wall of the shell, emits target light and is used for positioning the position of the tunnel deformation long-term monitoring device; the control mainboard is arranged in the shell, and is electrically connected with the first measuring light source, the second measuring light source and the positioning light source, and is used for controlling the first measuring light source, the second measuring light source and the positioning light source and is used for being in communication connection with the measuring service end.
In some embodiments, the control motherboard is electrically connected to a first power outlet for connecting to a power source.
In some embodiments, the control motherboard is further electrically connected with a second power socket for connecting with other tunnel deformation long-term monitoring devices.
In some embodiments, the shell is connected with a back cover plate, two adjacent edges of the back cover plate are respectively provided with a strip-shaped fixing hole in a corresponding mode, one strip-shaped fixing hole is transversely arranged, the other strip-shaped fixing hole is longitudinally arranged, and the two strip-shaped fixing holes are used for fixing the tunnel deformation long-term monitoring device on the tunnel wall.
In some embodiments, the back cover plate is further provided with an anti-falling hole adjacent to one of the strip-shaped fixing holes, the anti-falling hole is used for connecting a fixing chain, one end of the fixing chain is fixedly connected in the anti-falling hole, and the other end of the fixing chain is fixed on the tunnel wall.
In some embodiments, the control main board is further connected with an antenna, the antenna is arranged at the top of the shell, and the antenna is used for enhancing communication signals between the tunnel deformation long-term monitoring device and the measurement server.
In some embodiments, an antenna protection shell is arranged inside the shell, the antenna protection shell is provided with an opening, the opening is flush with the outer surface of the shell, the antenna protection shell is used for protecting an antenna, one end of the antenna is inserted into the antenna protection shell, and the other end of the antenna extends out of the shell.
In some embodiments, the first measuring light source and the second measuring light source each comprise two light emitting elements, one for emitting infrared light and the other for emitting red light.
In some embodiments, a light source fixing frame is arranged on the shell, and a positioning hole is arranged on the light source fixing frame and used for fixing the luminous element.
In some embodiments, the control main board is further electrically connected with a control key and a display screen, the control key and the display screen are both arranged at the front panel of the shell, the control key is used for controlling the working state of the tunnel deformation long-term monitoring device, and the display screen is used for displaying the working state of the tunnel deformation long-term monitoring device.
The beneficial effects of the utility model are as follows: when the deformation of the tunnel inside is monitored by the tunnel deformation long-term monitoring device, the control main board controls the first measuring light source and the second measuring light source to emit structural light, an omnibearing structural light curve is formed on the vault, the side wall and the roadbed of the tunnel through the cooperation of the first measuring light source and the second measuring light source, the position of the tunnel deformation long-term monitoring device is determined through the target light emitted by the positioning light source, and whether the vault, the side wall and the roadbed of the tunnel are deformed or not is judged according to the position of the tunnel deformation long-term monitoring device and the structural light curve. The tunnel deformation long-term monitoring device is arranged in a tunnel, can monitor the deformation inside the tunnel in real time and in an omnibearing manner, transmits deformation data to a measurement server, and has the advantages of being simple in structure and high in measurement accuracy.
Drawings
FIG. 1 is a schematic view of a tunnel deformation long-term monitoring device according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure of an embodiment of a tunnel deformation long-term monitoring device according to the present utility model;
FIG. 3 is a schematic view of a partial structure of a housing and a back cover of an embodiment of a tunnel deformation long-term monitoring device according to the present utility model;
FIG. 4 is a schematic view of the structure of a back cover plate of an embodiment of a tunnel deformation long-term monitoring device according to the present utility model;
FIG. 5 is a schematic view of a partial structure of an antenna and an antenna protective case according to an embodiment of the tunnel deformation long-term monitoring device of the present utility model;
Fig. 6 is a schematic view of a partial structure of a light source holder and a light emitting member according to an embodiment of the tunnel deformation long-term monitoring device of the present utility model.
Detailed Description
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
For the description of the present utility model, the labels "front", "rear", "up", "down", "left" and "right" shown in fig. 1 are used for non-limiting purposes to facilitate understanding of this embodiment and are not intended to limit the present utility model. Wherein, the front-back direction represents the transverse direction, the left-right direction represents the longitudinal direction, and the up-down direction represents the vertical direction.
Fig. 1 to 6 show an embodiment of a tunnel deformation long-term monitoring device of the present utility model, which is used for long-term monitoring of an operation tunnel and installation monitoring along with tunnel excavation movement in a tunnel construction, and comprises a housing 1, a first measuring light source 2, a second measuring light source 3, a positioning light source 4 and a control main board 5, wherein the first measuring light source 2 is arranged at the upper part of the housing 1 with a preset included angle, the second measuring light source 3 is arranged at the lower part of the housing 1 with a preset included angle, and the first measuring light source 2 and the second measuring light source 3 are both used for emitting structured light, so that a structured light curve is formed on the inner wall of the tunnel and the ground together; the positioning light source 4 is longitudinally arranged at the side wall of the shell 1, and the positioning light source 4 emits target light for positioning the position of the tunnel deformation long-term monitoring device; the control main board 5 is arranged in the shell 1, the control main board 5 is electrically connected with the first measuring light source 2, the second measuring light source 3 and the positioning light source 4, and the control main board 5 is used for controlling the first measuring light source 2, the second measuring light source 3 and the positioning light source 4 and is used for being in communication connection with a measuring service end.
When the long-term monitoring device for tunnel deformation monitors deformation in a tunnel, the control main board 5 controls the first measuring light source 2 and the second measuring light source 3 to emit structural light, an omnibearing structural light curve is formed on the vault, the side wall and the roadbed of the tunnel through the cooperation of the first measuring light source 2 and the second measuring light source 3, the position of the long-term monitoring device for tunnel deformation is determined through the target light emitted by the positioning light source 4, and whether the vault, the side wall and the roadbed of the tunnel deform or not is judged according to the position of the long-term monitoring device for tunnel deformation and the structural light curve. The tunnel deformation long-term monitoring device is arranged in a tunnel, can monitor the deformation inside the tunnel in real time and in an omnibearing manner, transmits deformation data to a measurement server, and has the advantages of being simple in structure and high in measurement accuracy.
Specifically, the positioning light source 4 is arranged in the inner walls of the left side and the right side of the shell 1, the cross-shaped through holes 11 are correspondingly formed in the inner walls, the target light penetrates out through the cross-shaped through holes 11 to play a role of identification, namely, when the shooting camera shoots the tunnel deformation long-term monitoring device, the positioning light source 4 is shot through the shooting camera, the distance between the shooting camera and the positioning light source 4 is acquired, and the position of the tunnel deformation long-term monitoring device is determined.
Further, a light source film 41 is disposed on the side wall of the housing 1 outside the positioning light source 4, a light transmitting area 411 is disposed on the light source film 41, the light transmitting area 411 is adapted to the positioning light source 4, in this embodiment, the light beads of the positioning light source 4 are arranged in a cross shape, and the light transmitting area 411 is also in a cross shape. The light source film 41 can seal the side surface of the case 1, and can facilitate the transmission of the target light and prevent a large amount of dust from entering the case 1.
Specifically, the first measuring light source 2 is arranged at the upper left corner of the shell 1 at a preset included angle, the second measuring light source 3 is arranged at the lower left corner of the shell 1 at a preset included angle, the first measuring light source 2 and the second measuring light source 3 emit structured light, the structured light is transmitted to the vault, the side wall and the roadbed of the tunnel to form a structured light curve, the shooting camera shoots the formed structured light curve and transmits data to the measuring service end, and the measuring service end acquires the position and structured light curve data of the tunnel deformation long-term monitoring device and judges whether the tunnel is deformed by comparing with the initial position and the initial structured light curve.
Further, the preset included angle of the first measuring light source 2 and the second measuring light source 3 is 30 degrees to 90 degrees, preferably 45 degrees. The first measuring light source 2 is arranged on the upper portion of the shell 1 at a preset included angle, so that structural light can be completely projected to the inner upper wall and the vault of the tunnel through the preset included angle, the second measuring light source 3 is arranged on the lower portion of the shell 1 at the preset included angle, so that the structural light can be completely projected to the inner lower wall and the roadbed of the tunnel through the preset included angle, the tunnel is comprehensively covered, and the integrity of the structural light curve is ensured.
In practical application, the first measuring light source 2 and the second measuring light source 3 are semiconductor diode lasers or semiconductor PN junction diode lasers, and the positioning light source 4 is an LED lamp panel, a lamp strip, or the like.
In some embodiments, the control main board 5 is electrically connected to the first power socket 51, and in this embodiment, the first power socket 51 is disposed on the lower side of the housing 1, and may be disposed at other convenient positions according to actual needs, which is not limited herein. The first power socket 51 is connected with an external power supply through a cable, and a battery is arranged in the device for monitoring the deformation of the tunnel for a long time, so that the device is more convenient to maintain in the later period, and the battery is replaced and maintained in the skylight during the operation of the tunnel, the tunnel and the urban subway, so that the first power socket 51 is only required to be powered on after installation.
In some embodiments, the control main board 5 is further electrically connected with a second power socket 52, in this embodiment, the second power socket 52 is disposed at the lower side of the casing 1 and is adjacent to the first power socket 51, the second power socket 52 is used for connecting with other tunnel long-term deformation monitoring devices, multiple tunnel deformation long-term monitoring devices need to be laid for longer tunnels and tunnels, in order to facilitate power taking, the second power socket 52 and the first power socket 51 of the adjacent tunnel deformation long-term monitoring device can be connected in series, power taking of the adjacent tunnel deformation long-term monitoring device is completed, and cables are saved.
As shown in fig. 3 and 4, in some embodiments, the housing 1 is connected with the back cover plate 6, in this embodiment, the housing 1 is buckled with the back cover plate 6, the connection edge of the housing 1 has a connection protrusion 12, a connection groove 61 is disposed at a corresponding position on the back cover plate 6, the connection protrusion 12 may be buckled in the connection groove 61, and in order to ensure buckling stability and tightness, a buckling sealing pad 611 is further disposed in the connection groove 61. The two sides of the back cover plate 6 are respectively and correspondingly provided with a strip-shaped fixing hole 62 adjacent to the edges, one strip-shaped fixing hole 62 is transversely arranged, the other strip-shaped fixing hole 62 is longitudinally arranged, and a screw penetrates through the two strip-shaped fixing holes 62 to fix the tunnel deformation long-term monitoring device on the tunnel wall; on the other hand, the balance of the device installation after the installation is ensured, and the device cannot easily shake up and down and left and right.
In some embodiments, the back cover plate 6 is further provided with an anti-falling hole 63 adjacent to one of the strip-shaped fixing holes 62, the anti-falling hole 63 is used for connecting a fixing chain (not shown in the figure), one end of the fixing chain is fixedly connected in the anti-falling hole 63, the other end of the fixing chain is fixed on the tunnel wall, and after the screw of the strip-shaped fixing hole 62 is prevented from falling off, the tunnel deformation long-term monitoring device falls down to generate a safety accident.
In some embodiments, the control main board 5 is further connected with an antenna 53, the antenna 53 is disposed at the top of the casing 1, the antenna 53 is used for enhancing communication signals between the tunnel deformation long-term monitoring device and the measurement service end, the tunnel is relatively closed, the signal strength can be relatively weakened, and the antenna 53 is provided to ensure the strength of the signals.
As shown in fig. 5, in some embodiments, the inside of the casing 1 is provided with an antenna protection casing 13, the antenna protection casing 13 is provided with an opening, the opening is flush with the outer surface of the casing 1, the antenna protection casing 13 is fixed in the casing 1 through a screw, a protection casing sealing gasket is arranged between the antenna protection casing 13 and the casing 1, the tightness of connection between the antenna protection casing 13 and the casing 1 is ensured, the antenna protection casing 13 is used for protecting an antenna 53, one end of the antenna 53 is inserted in the antenna protection casing 13, and the other end extends out of the casing 1. In addition, an antenna sealing gasket 131 is further arranged between the antenna 53 and the inside of the antenna protecting shell 13, and the antenna sealing gasket 131 is sleeved on the antenna 53, so that the antenna 53 is firmly inserted into the antenna protecting shell 13.
As shown in fig. 6, in some embodiments, the first measuring light source 2 and the second measuring light source 3 each include two light emitting elements 21, wherein one light emitting element 21 is used for emitting infrared light, the other light emitting element 21 is used for emitting red light, the infrared light is invisible to naked eyes, the infrared light can be photographed by special equipment, the red light is visible light, and a detector can observe the red light by naked eyes, so that the device is debugged during initial installation, and the monitoring quality during later use is ensured.
In some embodiments, the light source fixing frame 14 is disposed on the housing 1, the light source fixing frame 14 is fixed in the housing 1 by screws, the light source fixing frame 14 is provided with two positioning holes 141, two light emitting elements 21 are respectively inserted into the positioning holes 141 to irradiate outwards, then the limiting screws 142 penetrate through the limiting holes 143 on the light source fixing frame 14 to abut against the light emitting elements 21, the light emitting elements 21 are limited at a proper position, the light emitting elements 21 are conveniently assembled and positioned, the light emitting elements 21 can be fixed in the positioning holes 141 without shaking, and the stability of the light irradiation direction of the structure is ensured. In addition, one end of the positioning hole 141 facing outwards is correspondingly stuck with an infrared light transmitting sheet 211 and a red light transmitting sheet 212, so that infrared light and red light can be conveniently transmitted.
In some embodiments, the control main board 5 is further electrically connected with a control key 54 and a display screen 55, the control key 54 and the display screen 55 are both disposed at the front panel of the housing 1, in this embodiment, the control key 54 is disposed adjacently below the display screen 55, the control key 54 is used for controlling the working state of the tunnel deformation long-term monitoring device, such as on/off of the tunnel deformation long-term monitoring device, and brightness adjustment of the first measurement light source 2, the second measurement light source 3 and the positioning light source 4; the display screen 55 is used for displaying the working state of the tunnel deformation long-term monitoring device, such as on-off condition, working time, etc., and a protective film 56 is adhered on the outer sides of the control key 54 and the display screen 55 for protecting the control key 54 and the display screen 55 from being scratched, and for indicating the function of the control key 54.
Therefore, the utility model discloses a tunnel deformation long-term monitoring device, which is characterized in that a main board is controlled to control a first measuring light source and a second measuring light source to emit structural light, an omnibearing structural light curve is formed on a vault, a side wall and a roadbed of a tunnel through the cooperation of the first measuring light source and the second measuring light source, the position of the tunnel deformation long-term monitoring device is determined through the target light emitted by a positioning light source, and whether the vault, the side wall and the roadbed of the tunnel deform is judged according to the position of the tunnel deformation long-term monitoring device and the structural light curve. The tunnel deformation long-term monitoring device is arranged in a tunnel, can monitor the deformation inside the tunnel in real time and in an omnibearing manner, and has the advantages of simple structure and high measurement accuracy.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.
Claims (10)
1. The tunnel deformation long-term monitoring device is used for long-term monitoring of an operation tunnel and monitoring of movable installation along with tunnel excavation in a tunnel construction and is characterized by comprising a shell, a first measuring light source, a second measuring light source, a positioning light source and a control main board, wherein the first measuring light source is arranged at the upper part of the shell at a preset included angle, the second measuring light source is arranged at the lower part of the shell at a preset included angle, and the first measuring light source and the second measuring light source are both used for emitting structural light to form a structural light curve on the inner wall of the tunnel and the ground together; the positioning light source is longitudinally arranged at the side wall of the shell, emits target light and is used for positioning the position of the tunnel deformation long-term monitoring device; the control main board is arranged in the shell, is electrically connected with the first measuring light source, the second measuring light source and the positioning light source, and is used for controlling the first measuring light source, the second measuring light source and the positioning light source and is used for being in communication connection with a measuring service end.
2. The tunnel deformation long-term monitoring device according to claim 1, wherein the control main board is electrically connected with a first power socket, and the first power socket is used for connecting a power supply.
3. The tunnel deformation long-term monitoring device according to claim 2, wherein the control main board is further electrically connected with a second power socket, and the second power socket is used for connecting other tunnel deformation long-term monitoring devices.
4. The long-term monitoring device for tunnel deformation according to claim 1, wherein the housing is connected with a back cover plate, two adjacent edges of the back cover plate are respectively provided with a strip-shaped fixing hole, one of the strip-shaped fixing holes is transversely arranged, the other strip-shaped fixing hole is longitudinally arranged, and the two strip-shaped fixing holes are used for fixing the long-term monitoring device for tunnel deformation on a tunnel wall.
5. The device for long-term monitoring of tunnel deformation according to claim 4, wherein an anti-falling hole is further formed in the rear cover plate and adjacent to one of the strip-shaped fixing holes, the anti-falling hole is used for being connected with a fixing chain, one end of the fixing chain is fixedly connected in the anti-falling hole, and the other end of the fixing chain is fixedly arranged on the tunnel wall.
6. The tunnel deformation long-term monitoring device according to claim 3, wherein the control main board is further connected with an antenna, the antenna is arranged at the top of the shell, and the antenna is used for enhancing communication signals between the tunnel deformation long-term monitoring device and the measurement server.
7. The tunnel deformation long-term monitoring device according to claim 6, wherein an antenna protection shell is arranged inside the shell, the antenna protection shell is provided with an opening, the opening is flush with the outer surface of the shell, the antenna protection shell is used for protecting the antenna, one end of the antenna is inserted into the antenna protection shell, and the other end of the antenna extends out of the shell.
8. The tunnel deformation long-term monitoring device according to claim 7, wherein the first measuring light source and the second measuring light source each comprise two light emitting members, one of which is configured to emit infrared rays and the other of which is configured to emit red light.
9. The tunnel deformation long-term monitoring device according to claim 8, wherein a light source fixing frame is arranged on the shell, and the light source fixing frame is provided with a positioning hole for fixing the light emitting element.
10. The tunnel deformation long-term monitoring device according to claim 9, wherein the control main board is further electrically connected with a control key and a display screen, the control key and the display screen are both arranged at the front panel of the shell, the control key is used for controlling the working state of the tunnel deformation long-term monitoring device, and the display screen is used for displaying the working state of the tunnel deformation long-term monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323243219.8U CN221280196U (en) | 2023-11-29 | 2023-11-29 | Tunnel deformation long-term monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323243219.8U CN221280196U (en) | 2023-11-29 | 2023-11-29 | Tunnel deformation long-term monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221280196U true CN221280196U (en) | 2024-07-05 |
Family
ID=91691650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323243219.8U Active CN221280196U (en) | 2023-11-29 | 2023-11-29 | Tunnel deformation long-term monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221280196U (en) |
-
2023
- 2023-11-29 CN CN202323243219.8U patent/CN221280196U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11925229B2 (en) | Safety helmet to be used by a person in low light conditions and monitoring procedure associated | |
| CN221280196U (en) | Tunnel deformation long-term monitoring device | |
| US11908313B2 (en) | Lighting system and method of use thereof | |
| JP4176624B2 (en) | Self-luminous guidance device and disaster guidance system | |
| JP4683214B2 (en) | Guide light device | |
| KR101032467B1 (en) | Emergency exit lamp enforced water proof | |
| KR102505235B1 (en) | Location Indication lamp for emergency fire extinguishing system | |
| CN204102518U (en) | A kind of luminescence indicating assembly | |
| CN217424305U (en) | Tunnel deformation measuring terminal | |
| KR200371791Y1 (en) | Indication apparatus easy distinguishable for location of fire extinguisher | |
| US20150042347A1 (en) | System, Apparatus and Method for Light Diffusion and Testing for Fixtures | |
| CN206555804U (en) | A kind of panel light | |
| JP2007298565A (en) | Illuminated display device | |
| CN217770213U (en) | Take smoke alarm's two mesh passenger flow all-in-one | |
| KR200329862Y1 (en) | Emergency flash signal display | |
| CN216900571U (en) | Intelligent electronic ovulation detector | |
| KR20190138998A (en) | accident information providing method using an impact-preventing member coupled to guardrail | |
| CN218729740U (en) | Emergent sparse device of fire control | |
| CN217575018U (en) | Multifunctional intelligent parking warning indicator for motor vehicle | |
| KR101462505B1 (en) | Led luminaires having an extension module | |
| CN219459188U (en) | Network camera | |
| CN213123268U (en) | Infrared beam detector for fire | |
| CN219761116U (en) | Monitor and monitoring system | |
| KR20240137190A (en) | Guidance light | |
| CN217546154U (en) | Intelligent security monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |