CN211237093U - Small clear distance tunnel tunneling safety distance early warning device - Google Patents
Small clear distance tunnel tunneling safety distance early warning device Download PDFInfo
- Publication number
- CN211237093U CN211237093U CN201922370272.1U CN201922370272U CN211237093U CN 211237093 U CN211237093 U CN 211237093U CN 201922370272 U CN201922370272 U CN 201922370272U CN 211237093 U CN211237093 U CN 211237093U
- Authority
- CN
- China
- Prior art keywords
- data
- distance
- threshold
- resistor
- voltage comparator
- 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
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to the technical field of tunnel construction management, and discloses a small clear distance tunnel tunneling safety distance early warning device, a distance meter, which is used for acquiring actual distance data between an inverted arch and/or a secondary lining distance support surface in a construction tunnel; the data sending device is connected with the distance meter and used for sending the actual distance data acquired by the distance meter; a server, comprising: the data receiving device is used for receiving the actual distance data sent by the data sending device; a memory storing threshold data; the comparison unit is connected with the data receiving device and the memory so as to compare the actual distance data with the threshold data; and the alarm device is in communication connection with the comparison unit and is triggered when the actual distance data is out of the threshold data range. The utility model provides a little clean apart from tunnelling safe distance early warning device has realized that measured data and safety threshold's automation are compared, has realized the safety precaution function.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction management technique and specifically relates to a little clean apart from tunnelling safe distance early warning device is related to.
Background
The excavation in tunnel makes the country rock that supports the tunnel body excavated, and face sky appears in face rear, and country rock stress redistributes, leads to the country rock to warp to tunnel headroom direction. The deformation comprises vertical and horizontal deformation in a tunnel face surface and longitudinal deformation outside the tunnel face, and the main purposes of arranging advanced support and primary support in the weak surrounding rock tunnel are to inhibit the development of the deformation and prevent surrounding rock from loosening. Meanwhile, the inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of an upper supporting structure, and is one of main components of the tunnel structure.
In order to ensure the construction safety, the tunnel face safety step pitch and the inverted arch safety step pitch are always required to be respectively measured in real time in the tunnel construction process, so that the construction progress safety is ensured.
The chinese patent application with publication number CN110220460A discloses a tunnel safety step monitoring and measuring device, which comprises a step instrument body, a rotation driving mechanism and a fixing plate, wherein the whole step instrument body is of a square structure, two laser measuring holes which are parallel and level to each other are arranged on the front end surface of the step instrument body, and a distance sensor and an angle sensor are arranged in the step instrument body where the laser measuring holes are located. Through the synergistic effect of the laser sensor and the angle sensor, two safe steps of the tunnel face and the inverted arch can be measured simultaneously, the measurement cost is reduced, and the monitoring accuracy is improved.
However, the above technical solutions only implement the measurement function, and after the measurement, the actual measurement distance still needs to be compared and judged by a human, and it is not automated.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a little clean apart from tunnelling safe distance early warning device, its automation that has realized measured data and safe threshold value is compared, has realized the safe early warning function.
The above mentioned utility model discloses an above-mentioned utility model purpose little clear apart from tunnelling safe distance early warning device can realize through following technical scheme:
little clear tunnel tunnelling safe distance early warning device apart from includes:
the distance measuring instrument is used for acquiring actual distance data between the inverted arch and/or the secondary lining distance support surface in the construction tunnel;
the data sending device is connected with the distance meter and used for sending the actual distance data acquired by the distance meter;
a server, comprising:
the data receiving device is used for receiving the actual distance data sent by the data sending device;
a memory storing threshold data;
the comparison unit is connected with the data receiving device and the memory so as to compare the actual distance data with the threshold data;
in addition, the method also comprises the following steps:
and the alarm device is in communication connection with the comparison unit and is triggered when the actual distance data is out of the threshold data range.
By adopting the technical scheme, the working personnel can measure the actual distance data between the inverted arch and/or the secondary lining distance support surface by holding the distance measuring instrument by hand, or fix the distance measuring instrument on the inverted arch and/or the secondary lining distance position to measure the actual distance data between the inverted arch and/or the secondary lining distance support surface, then the measured actual distance data is sent to the server through the data sending device, the server receives the actual distance data through the data receiving device and sends the actual distance data to the comparison unit, the comparison unit calls the corresponding threshold value data in the memory to compare with the actual distance data, and the actual distance data is triggered when being out of the threshold value data range, so that the automatic comparison of the measured data and the safety threshold value is realized, and the safety early warning function is realized.
The present invention may be further configured in a preferred embodiment as: and the comparison unit is internally provided with a comparison circuit, and the comparison circuit comprises a bias circuit and a high threshold comparison unit and a low threshold comparison unit which are respectively connected with the bias circuit.
By adopting the above technical scheme, since the threshold data is a numerical range including an upper limit and a lower limit, the high threshold comparing unit is used for comparing the actual distance data with the upper limit of the threshold, and the low threshold comparing unit is used for comparing the actual distance data with the lower limit of the threshold, thereby judging whether the actual distance data is within the threshold range.
The present invention may be further configured in a preferred embodiment as: the bias circuit comprises a first resistor R1 and a second resistor R2 which are connected in series, a node between the first resistor R1 and the second resistor R2 is connected with the data receiving device 31, the first resistor R1 is connected with a power supply VCC of the circuit, and the second resistor R2 is connected with a ground terminal GND.
By adopting the technical scheme, the working point of the comparison circuit is set by setting the bias circuit.
The present invention may be further configured in a preferred embodiment as: the high threshold comparison unit comprises a first voltage comparator, a node between the first resistor R1 and the second resistor R2 is connected with a first input end VA1 of the first voltage comparator, a second input end VA2 of the first voltage comparator is connected with a high threshold voltage unit, and an output end VA3 of the first voltage comparator is connected with a first data interface.
By adopting the above technical scheme, the actual distance data is input from the data receiving device to the first input end VA1 of the first voltage comparator, the upper limit of the threshold value is input from the second input end VA2 of the first voltage comparator, the actual distance data and the upper limit of the threshold value are compared by the first voltage comparator, and the comparison result is output through the output end VA3 of the first voltage comparator.
The present invention may be further configured in a preferred embodiment as: the low threshold comparison unit comprises a second voltage comparator, a node between the first resistor R1 and the second resistor R2 is connected with a third input end VB1 of the second voltage comparator, a fourth input end VB2 of the second voltage comparator is connected with a low threshold voltage unit, an output end VB3 of the second voltage comparator is connected with a second data interface, and the third input end VB1 and the first input end VA1 are reverse ends.
By adopting the technical scheme, the actual distance data is input into the third input end VB1 of the second voltage comparator from the data receiving device, the lower threshold value is input from the fourth input end VB2 of the second voltage comparator, the actual distance data and the lower threshold value are compared through the second voltage comparator, and the comparison result is output through the output end VB3 of the second voltage comparator; the third input terminal VB1 and the first input terminal VA1 are set as inverting terminals, so that when the actual distance data is outside the threshold range (i.e., greater than the upper threshold limit or less than the lower threshold limit), the output levels of the first voltage comparator and the second voltage comparator are the same, thereby controlling the alarm device to perform the same task, and when the actual distance data is within the threshold range (i.e., less than or equal to the upper threshold limit and greater than or equal to the lower threshold limit), the output levels of the first voltage comparator and the second voltage comparator are opposite to those when the actual distance data is outside the threshold range, thereby controlling the alarm device to perform different tasks than when the actual distance data is outside the threshold range.
The present invention may be further configured in a preferred embodiment as: the high threshold voltage unit and the low threshold voltage unit are both connected to a threshold control unit, and the threshold control unit is connected to the memory.
By adopting the technical scheme, the safe distance threshold data of tunnel tunneling is a specific value determined according to the actual distance of the small clear distance tunnel, the tunnel strut surface surrounding rock registration and the relevant specification, different safe distance threshold data are set for different surrounding rock grades, and the threshold data are conveniently selected according to different surrounding rock grades and the measured position (the actual distance data between the inverted arch or the secondary lining distance strut surface) by setting the threshold control unit.
The present invention may be further configured in a preferred embodiment as: the alarm device comprises a trigger circuit and an alarm connected with the trigger circuit, and the input end of the trigger circuit is connected with the first data interface and the second data interface respectively.
By adopting the technical scheme, the trigger circuit executes the alarm task through the comparison result of the comparison unit, and when the trigger circuit is triggered, the alarm gives an alarm.
The present invention may be further configured in a preferred embodiment as: the alarm device comprises a trigger circuit and a wireless communication unit connected with the trigger circuit, the wireless communication unit is in communication connection with the mobile terminal, and the input end of the trigger circuit is respectively connected with the first data interface and the second data interface.
By adopting the technical scheme, the triggering circuit executes the alarm task through the comparison result of the comparison unit, and when the triggering circuit is triggered, the alarm information is sent to the mobile terminal through the wireless communication unit.
The present invention may be further configured in a preferred embodiment as: the trigger circuit is an exclusive-nor logic circuit.
By adopting the technical scheme, the exclusive OR gate logic circuit is adopted, when the first data interface and the second data interface output high levels or low levels at the same time, the exclusive OR gate logic circuit outputs high levels so as to execute an alarm task, otherwise, the exclusive OR gate logic circuit outputs low levels so as not to execute the alarm task.
To sum up, the utility model provides a little clean apart from tunnelling safe distance early warning device includes following at least one useful technological effect:
1. the data sending device connected with the distance meter is arranged to send the measured actual distance data to the server, the server receives the actual distance data through the data receiving device and sends the actual distance data to the comparison unit, the comparison unit calls the corresponding threshold value data in the storage to compare with the actual distance data, and the actual distance data is triggered when the actual distance data is out of the threshold value data range, so that the automatic comparison of the measured data and the safety threshold value is realized, and the safety early warning function is realized;
2. by respectively connecting the high threshold comparison unit and the low threshold comparison unit to the reverse ends of the first voltage comparator and the second voltage comparator and simultaneously adopting an exclusive-OR gate logic circuit as an execution circuit of the alarm device, the output levels of the first voltage comparator and the second voltage comparator are ensured to be the same when the actual distance data is out of the threshold range (namely, the actual distance data is greater than the upper threshold limit or less than the lower threshold limit), so that the alarm device is controlled to execute the same task and execute alarm; when the actual distance data is within the threshold range (namely, the actual distance data is less than or equal to the upper threshold limit and greater than or equal to the lower threshold limit), the first voltage comparator and the second voltage comparator output the opposite level to that when the actual distance data is outside the threshold range, so that the alarm device is controlled to perform a different task than that when the actual distance data is outside the threshold range, and the alarm is not given.
Drawings
Fig. 1 is a schematic structural view of a small clear distance tunnel tunneling safety distance early warning device provided by the present invention;
fig. 2 is a circuit diagram of a comparison circuit in the small clear distance tunneling safety distance early warning device according to the first embodiment of the present invention;
fig. 3 is a circuit diagram of a comparison circuit in the small clear distance tunneling safety distance early warning device provided by the second embodiment of the present invention.
In the figure, 1, a distance measuring instrument; 2. a data transmitting device; 3. a server; 31. a data receiving device; 310. a first voltage comparator; 311. a high threshold voltage unit; 312. a first data interface; 32. a memory; 320. a second voltage comparator; 321. a low threshold voltage unit; 322. a second data interface; 33. a comparison unit; 330. a bias circuit; 331. a high threshold comparison unit; 332. a low threshold comparison unit; 34. an alarm device; 341. a trigger circuit; 342. an alarm; 343. A wireless communication unit; 35. a threshold control unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
the utility model discloses a little clear apart from tunnelling safe distance early warning device, as shown in figure 1, include:
the distance measuring instrument 1 is used for acquiring actual distance data between the inverted arch and/or the secondary lining distance support surface in the construction tunnel; in this embodiment of the present invention, the distance measuring device 1 is a laser distance measuring device commonly used in the market, and the distance measuring device 1 can be held by a worker during measurement to measure the actual distance data between the inverted arch and/or the secondary lining distance support surface, and the distance measuring device 1 can also be fixed to the inverted arch and/or the secondary lining distance position to measure the actual distance data between the inverted arch and/or the secondary lining distance support surface;
the data sending device 2 is positioned on the distance measuring instrument 1 and used for sending actual distance data between the inverted arch and/or the secondary lining distance support surfaces measured and obtained by the distance measuring instrument;
server 3, with 1 communication connection of distancer, its communication mode is wired or wireless all can, includes:
data receiving means 31 for receiving the actual distance data transmitted by the data transmitting means 2;
a memory 32 in which threshold data is stored in advance;
a comparison unit 33 connected to the data receiving device 31 and the memory 32 to compare the actual distance data measured by the distance meter 1 with the threshold data stored in the memory 32;
in addition, the method also comprises the following steps:
and an alarm device 34, which is connected with the comparison unit 33 in a communication way and is triggered when the actual distance data is out of the threshold data range.
As shown in fig. 2, the comparison unit 33 is provided with a comparison circuit, and the comparison circuit includes a bias circuit 330, and a high threshold comparison unit 331 and a low threshold comparison unit 332 respectively connected to the bias circuit 330.
The bias circuit 330 includes a first resistor R1 and a second resistor R2 connected in series, the first resistor R1 is connected to the power supply VCC of the circuit, the second resistor R2 is connected to the ground GND, and the node between the first resistor R1 and the second resistor R2 is connected to the data receiving device 31.
The high threshold comparing unit 331 comprises a first voltage comparator 310 and a high threshold voltage unit 311, wherein a node between the first resistor R1 and the second resistor R2 is connected to a first input VA1 of the first voltage comparator 310, in this embodiment of the present invention, the first input VA1 is a "+" input of the first voltage comparator 310, the second input VA2 of the first voltage comparator 310 (i.e., a "-" input of the first voltage comparator 310) is connected to the high threshold comparing unit 331, and the output VA3 of the first voltage comparator 310 is connected to the first data interface 312.
The low threshold comparing unit 332 comprises a second voltage comparator 320 and a low threshold voltage unit 321, wherein a node between the first resistor R1 and the second resistor R2 is connected to a third input terminal VB1 of the second voltage comparator 320, in this embodiment of the present invention, the third input terminal VB1 is a "-" input terminal of the second voltage comparator 320, the fourth input terminal VB2 of the second voltage comparator 320 (i.e., a "+" input terminal of the second voltage comparator 320) is connected to the low threshold voltage unit 321, and the output terminal VB3 of the second voltage comparator 320 is connected to the second data interface 322.
As shown in fig. 2, the alarm device 34 includes a trigger circuit 341 and an alarm 342 connected to the trigger circuit 341. The flip-flop 341 is an exclusive-nor logic circuit, and the first data interface 312 and the second data interface 322 are respectively connected to two input terminals of the flip-flop 341; an alarm 342 is connected to the output of the trigger circuit 341. Specifically, as shown in fig. 2, the output end of the trigger circuit 341 is connected to a third resistor R3, the other end of the third resistor R3 is connected to a base B of an NPN transistor T1, an emitter E of the NPN transistor T1 is grounded, a collector of the NPN transistor T1 is connected to an anode of a diode D1, a diode D1 is connected to a power source VCC, the diode is connected in parallel to a relay KM, and the alarm 342 is connected in series to a contact S of the relay KM.
Table one: actual distance data to threshold data comparison table
As shown in Table I, when the voltage V is inputted from the first data interface 312INGreater than the voltage V output by the high threshold voltage unit 311h(upper threshold) time, the first voltage comparator 310 outputs a high level due to the voltage V output from the high threshold voltage unit 311hGreater than the voltage (lower threshold) V output by the low threshold voltage unit 321lAt this time, the voltage V input by the first data interface 312INMust be greater than the voltage V output by the low threshold voltage unit 321lTherefore, the second voltage comparator 320 outputs a high level, and at this time, the trigger circuit 341 outputs a high level, the NPN transistor T1 is turned on, and the alarm 342 is triggered;
when the voltage V input by the first data interface 312INLess than the voltage V output by the low threshold voltage unit 321lAt this time, the second voltage comparator 320 outputs a low level, and the voltage V input to the first data interface 312 is at this timeINMust be less than the voltage V output by the high threshold voltage cell 311hTherefore, the first voltage comparator 310 outputs a low level, and at this time, the trigger circuit 341 outputs a high level, the NPN transistor T1 is turned on, and the alarm 342 is triggered;
when the voltage V input by the first data interface 312INIs greater than the voltage V output by the low threshold voltage unit 321lAnd is less than the voltage V output by the high threshold voltage unit 311hAt this time, the first voltage comparator 310 outputs a low level, the second voltage comparator 320 outputs a high level, and the trigger circuit 341 outputs a low level, and the alarm device 34 does not respond.
The utility model discloses in this embodiment, the safe distance threshold value data of tunneling is according to the actual distance in little clear distance tunnel, tunnel chaplet face country rock registration and the concrete value that relevant standard confirmed, and different country rock grades are set for has different safe distance threshold value data, specifically as shown in table two:
table two shows the threshold values of the inverted arch from the face of the rock for different wall rock grades and the threshold values of the secondary lining from the face of the rock for different wall rock grades:
in order to select threshold data according to different surrounding rock grades and measured positions (actual distance data between the inverted arch or the secondary lining distance support surfaces), as shown in fig. 2, the high threshold voltage unit 311 and the low threshold voltage unit 321 are both connected to a threshold control unit 35, the threshold control unit 35 is connected to the memory 32, the threshold control unit 35 is used for selecting proper threshold data from the memory 32, when measuring the distance between the inverted arch of the surrounding rock sections v and vi and the tunnel surface, the upper limit and the lower limit of the threshold are both selected to be 40m, and when measuring the distance between the secondary lining of the surrounding rock section iv and the tunnel surface, the upper limit and the lower limit of the threshold are both selected to be 90 m.
Example 2:
the utility model discloses the little clean apart from tunnelling safe distance early warning device that embodiment of the second kind provided is the same basically with in embodiment 1, its difference lies in:
as shown in fig. 3, the comparison unit 33 is provided with a comparison circuit, and the comparison circuit includes a bias circuit 330, and a high threshold comparison unit 331 and a low threshold comparison unit 332 respectively connected to the bias circuit 330.
The bias circuit 330 includes a first resistor R1 and a second resistor R2 connected in series, the first resistor R1 is connected to the power supply VCC of the circuit, the second resistor R2 is connected to the ground GND, and the node between the first resistor R1 and the second resistor R2 is connected to the data receiving device 31.
The high threshold comparing unit 331 comprises a first voltage comparator 310 and a high threshold voltage unit 311, a node between the first resistor R1 and the second resistor R2 is connected to a first input VA1 of the first voltage comparator 310, in this embodiment of the present invention, the first input VA1 is a "-" input of the first voltage comparator 310, the second input VA2 of the first voltage comparator 310 (i.e. the "+" input of the first voltage comparator 310) is connected to the high threshold comparing unit 331, and the output VA3 of the first voltage comparator 310 is connected to the first data interface 312.
The low threshold comparing unit 332 comprises a second voltage comparator 320 and a low threshold voltage unit 321, wherein a node between the first resistor R1 and the second resistor R2 is connected to the third input terminal VB1 of the second voltage comparator 320, in this embodiment of the present invention, the third input terminal VB1 is a "+" input terminal of the second voltage comparator 320, the fourth input terminal VB2 of the second voltage comparator 320 (i.e., a "-" input terminal of the second voltage comparator 320) is connected to the low threshold voltage unit 321, and the output terminal VB3 of the second voltage comparator 320 is connected to the second data interface 322.
The alarm device 34 includes a trigger circuit 341 and a wireless communication unit 343 connected to the trigger circuit 341, and the wireless communication unit 343 is communicatively connected to the mobile terminal. The flip-flop 341 is an exclusive-nor logic circuit, and the first data interface 312 and the second data interface 322 are respectively connected to two input terminals of the flip-flop 341; the wireless communication unit 343 is connected to the output of the trigger circuit 341.
Table three: actual distance data to threshold data comparison table
As shown in table three, when the voltage input into the first data interface 312 is greater than V'INVoltage V output from high threshold voltage unit 311h' (upper threshold) time, the first voltage comparator 310 outputs a low level due to the voltage V output from the high threshold voltage unit 311h' greater than the voltage V output from the low threshold voltage unit 321l' (lower threshold limit) of the voltage V ' input to the first data interface 312 at this time 'INMust be greater than the voltage V output by the low threshold voltage unit 321l', thus, the second voltage comparator 320, when the trigger circuit 341 outputs a high level, the NPN transistor T1 is turned on, and the wireless communication unit 343 sends an alarm signal to the mobile terminal;
when the voltage V 'input by the first data interface 312'INLess than the voltage V output by the low threshold voltage unit 321l'on' the second voltage comparator 320 outputs a high level, at which time the voltage V 'inputted from the first data interface 312'INMust be less than the voltage V output by the high threshold voltage cell 311hTherefore, the first voltage comparator 310 outputs a high level, at this time, the trigger circuit 341 outputs a high level, the NPN transistor T1 is turned on, and the wireless communication unit 343 sends an alarm signal to the mobile terminal;
when the voltage V 'input by the first data interface 312'INIs greater than the voltage V output by the low threshold voltage unit 321l' and less than the voltage V output by the high threshold voltage cell 311hWhen the first voltage comparator 310 outputs a high level and the second voltage comparator 320 outputs a low level, the trigger circuit 341 outputs a low level and the alarm device 34 does not respond.
In summary, when the actual distance data acquired by the distance meter 1 is greater than the upper threshold or lower than the lower threshold, the alarm device 34 is triggered to send an alarm signal; when the actual distance data acquired by the distance measuring instrument 1 is within the threshold range, namely between the lower threshold limit and the upper threshold limit, the alarm device 34 does not respond, so that the detection and early warning function of the safe step distance is realized.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. Little clear tunnel tunnelling safe distance early warning device apart from, its characterized in that includes:
the distance measuring instrument (1) is used for acquiring actual distance data between the inverted arch and/or the secondary lining distance support surface in the construction tunnel;
the data sending device (2) is connected with the distance meter (1) and used for sending the actual distance data acquired by the distance meter (1);
a server (3) comprising:
data receiving means (31) for receiving the actual distance data transmitted by the data transmitting means (2);
a memory (32) in which threshold data is stored;
a comparison unit (33) connected to the data receiving device (31) and the memory (32) for comparing the actual distance data with the threshold data;
in addition, the method also comprises the following steps:
and the alarm device (34) is in communication connection with the comparison unit (33) and is triggered when the actual distance data is out of the threshold data range.
2. The small clear distance tunneling safety distance early warning device according to claim 1, wherein a comparison circuit is arranged in the comparison unit (33), and the comparison circuit comprises a bias circuit (330) and a high threshold comparison unit (331) and a low threshold comparison unit (332) which are respectively connected with the bias circuit (330).
3. The small clear distance tunneling safety distance early warning device according to claim 2, wherein the bias circuit (330) comprises a first resistor (R1) and a second resistor (R2) which are connected in series, the first resistor (R1) is connected with a power supply VCC of the circuit, the second resistor (R2) is connected with a ground terminal GND, and a node between the first resistor (R1) and the second resistor (R2) is connected with the data receiving device (31).
4. The small clear distance tunneling safety distance warning device according to claim 3, wherein the high threshold comparison unit (331) comprises a first voltage comparator (310), a node between the first resistor (R1) and a second resistor (R2) is connected with a first input terminal (VA1) of the first voltage comparator (310), a second input terminal (VA2) of the first voltage comparator (310) is connected with a high threshold voltage unit (311), and an output terminal (VA3) of the first voltage comparator (310) is connected with the first data interface (312).
5. The small clear distance tunneling safety distance warning device according to claim 4, wherein the low threshold comparison unit (332) comprises a second voltage comparator (320), the node between the first resistor (R1) and the second resistor (R2) is connected with a third input end (VB1) of the second voltage comparator (320), a fourth input end (VB2) of the second voltage comparator (320) is connected with a low threshold voltage unit (321), an output end (VB3) of the second voltage comparator (320) is connected with a second data interface (322), and the third input end (VB1) and the first input end (VA1) are reverse ends.
6. The small clear distance tunneling safety distance warning device according to claim 5, wherein the high threshold voltage unit (311) and the low threshold voltage unit (321) are both connected to a threshold control unit (35), and the threshold control unit (35) is connected to the memory (32).
7. The small clear distance tunneling safety distance early warning device according to claim 5, wherein the alarm device (34) comprises a trigger circuit (341) and an alarm (342) connected to the trigger circuit (341), and the input end of the trigger circuit (341) is connected to the first data interface (312) and the second data interface (322), respectively.
8. The small clear distance tunneling safety distance early warning device according to claim 5, wherein the alarm device (34) comprises a trigger circuit (341) and a wireless communication unit (343) connected with the trigger circuit (341), the wireless communication unit (343) is in communication connection with a mobile terminal, and the input end of the trigger circuit (341) is connected with the first data interface (312) and the second data interface (322), respectively.
9. The small clear distance tunnelling safety distance warning device as claimed in claim 7 or 8, wherein said trigger circuit (341) is an exclusive nor logic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370272.1U CN211237093U (en) | 2019-12-24 | 2019-12-24 | Small clear distance tunnel tunneling safety distance early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370272.1U CN211237093U (en) | 2019-12-24 | 2019-12-24 | Small clear distance tunnel tunneling safety distance early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211237093U true CN211237093U (en) | 2020-08-11 |
Family
ID=71919694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922370272.1U Active CN211237093U (en) | 2019-12-24 | 2019-12-24 | Small clear distance tunnel tunneling safety distance early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211237093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894054A (en) * | 2020-09-08 | 2020-11-06 | 铁科院(深圳)研究设计院有限公司 | Foundation pit excavation state monitoring system and method based on laser range finder networking |
-
2019
- 2019-12-24 CN CN201922370272.1U patent/CN211237093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894054A (en) * | 2020-09-08 | 2020-11-06 | 铁科院(深圳)研究设计院有限公司 | Foundation pit excavation state monitoring system and method based on laser range finder networking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106767676B (en) | Spatial vertical distribution point position measurement method and system | |
| CN109974715B (en) | Tunneling machine autonomous navigation system and method combining strapdown inertial navigation and light spot identification | |
| CN101261124B (en) | Laser measuring system | |
| CN211237093U (en) | Small clear distance tunnel tunneling safety distance early warning device | |
| CN108195364B (en) | Operation positioning system for jumbolter | |
| CN112049648B (en) | Pipe jacking construction monitoring control method | |
| CN107741200A (en) | Two planar lasers for boom-type roadheader are to penetrating pose measurement system and method | |
| CN209745245U (en) | Wall surface verticality flatness measuring equipment | |
| CN106403822A (en) | Apparatus of monitoring civil engineering indoor model displacement by using laser | |
| CN111336985B (en) | Monitoring method and device for goaf iron tower, storage medium and electronic equipment | |
| CN108195341B (en) | Automatic deformation monitoring method for instrument station transfer without need of relearning | |
| CN110146057B (en) | Method for detecting tunnel section | |
| CN108716891B (en) | Rapid and accurate monitoring system and monitoring method for underground roadway surrounding rock deformation | |
| CN114111905A (en) | High slope construction scaffold safety monitoring system | |
| CN114370897B (en) | Device and method for monitoring blasting vibration of underground excavation tunnel | |
| CN215979344U (en) | Demolish blasting big gun hole drilling quality inspection and receive device | |
| CN212030514U (en) | Settlement monitoring device relative to datum point | |
| CN113503834A (en) | Measuring device for blast hole inclination angle | |
| CN113503833A (en) | Blast hole angle measuring method and system based on light spot projection | |
| CN110030019B (en) | Rapid positioning lofting method for tunnel primary support steel arch frame | |
| CN210396720U (en) | Unattended wireless inclination measurement while drilling system | |
| CN108549099B (en) | Size information acquisition method and acquisition system for underground concealed structure | |
| CN207365915U (en) | Two planar lasers for boom-type roadheader are to penetrating pose measurement system | |
| CN113376647B (en) | Blast hole measurement auxiliary equipment and application method thereof | |
| CN219161238U (en) | Device for monitoring deformation of underground roadway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |