CN110398312B - Intelligent outdoor hydrant remote water pressure monitoring terminal and intelligent outdoor hydrant - Google Patents
Intelligent outdoor hydrant remote water pressure monitoring terminal and intelligent outdoor hydrant Download PDFInfo
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- CN110398312B CN110398312B CN201910758526.9A CN201910758526A CN110398312B CN 110398312 B CN110398312 B CN 110398312B CN 201910758526 A CN201910758526 A CN 201910758526A CN 110398312 B CN110398312 B CN 110398312B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000012544 monitoring process Methods 0.000 title claims abstract description 98
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 238000013461 design Methods 0.000 abstract description 5
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000012806 monitoring device Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an intelligent outdoor fire hydrant remote water pressure monitoring terminal and a fire hydrant, wherein the monitoring terminal comprises a monitoring terminal body, a wire protection sleeve and a water pressure detection probe which are sequentially connected, a control unit is arranged in the monitoring terminal body, a through hole is formed in the middle of the monitoring terminal body, a mounting seat for being inserted into an opening at the top end of the fire hydrant is arranged at the bottom of the monitoring terminal body, a mounting column for being installed in a through hole on a valve core of the fire hydrant is arranged at the top of the water pressure detection probe, a pressure sensor unit is arranged on the water pressure detection probe, and a cable of the pressure sensor unit is electrically connected with the control unit through the sealed wire protection sleeve after passing through an inner hole of the mounting column; the fire hydrant comprises the monitoring terminal. The invention has convenient and quick installation, adopts low-power consumption design, has long service life, can be suitable for normal operation of a system under ultralow temperature, and has the functions of accurately and timely sensing fire water pressure and water temperature change, and accurately monitoring the positions of the fire hydrant, stealing, impacting, tilting and water taking/water leakage states in real time.
Description
Technical Field
The invention relates to a fire hydrant monitoring device, in particular to an intelligent outdoor fire hydrant remote water pressure monitoring terminal and an intelligent outdoor fire hydrant.
Background
An outdoor fire hydrant is common fire-fighting equipment and generally comprises a fire hydrant shell with a valve core, a locking cover plate is installed at an opening at the top end of the fire hydrant shell, a threaded hole is formed in the locking cover plate, an operating rod in threaded fit is installed in the threaded hole, and the lower end of the operating rod is connected with the valve core through a connecting piece. The working principle is as follows: the valve core is tightly matched with the valve body of the fire hydrant casing in a default state to realize sealing, after the operating rod is rotated to enable the operating rod to move upwards along the vertical direction, a gap is formed between the valve core and the valve body of the fire hydrant casing, so that water in a fire fighting pipeline flows out from the gap, and a water outlet is arranged on the side face of the fire hydrant casing. Therefore, the traditional outdoor hydrant is of a pure mechanical structure and does not have a water pressure monitoring function.
In order to realize remote water pressure monitoring of an outdoor fire hydrant, china patent application publication No. 201811215197.5 discloses an outdoor fire hydrant water pressure real-time monitoring device which is arranged at a bottom connecting flange of the outdoor fire hydrant, detects water pressure through a sensor and sends the water pressure to a remote server. However, this solution has the following problems in the application process: (1) The monitoring device is mounted at the bottom connection flange of the outdoor hydrant, but in practice the bottom connection flange of the outdoor hydrant is typically buried under soil or even concrete, thus making the mounting of the monitoring device very difficult. (2) The monitoring device is arranged at the bottom connecting flange of the outdoor hydrant, when the water pressure is detected through the sensor and sent to the remote server, the bottom connecting flange of the outdoor hydrant is buried under soil or even concrete, so that network signals are poor, and reliable and stable data transmission is difficult to realize.
Disclosure of Invention
The invention aims to solve the technical problems: aiming at the problems in the prior art, the invention provides the intelligent outdoor fire hydrant remote water pressure monitoring terminal and the intelligent outdoor fire hydrant, which are inserted and installed in the open hole at the top end of the fire hydrant, the rapid installation and maintenance can be realized without excavating the outdoor fire hydrant with the existing bottom connecting flange which is generally buried in soil or even under concrete, the installation is convenient and rapid, and the network signal is not easy to be blocked because the intelligent outdoor fire hydrant is installed at the top end of the fire hydrant, so that the data transmission is stable and reliable.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an intelligent outdoor fire hydrant remote water pressure monitoring terminal which comprises a monitoring terminal body, a wire protection sleeve and a water pressure detection probe which are sequentially connected, wherein a control unit is arranged in the monitoring terminal body, a through hole is formed in the middle of the monitoring terminal body, an installation seat used for being inserted into an opening at the top end of a fire hydrant is arranged at the bottom of the monitoring terminal body, an installation column used for being installed in a through hole on a fire hydrant valve core is arranged at the top of the water pressure detection probe, a pressure sensor unit is arranged on the water pressure detection probe, and a cable of the pressure sensor unit is electrically connected with the control unit through the sealed wire protection sleeve after passing through an inner hole of the installation column.
Optionally, the control unit includes microprocessor, communication module, main battery module and antenna, communication module, pressure sensor unit link to each other with microprocessor respectively, main battery module's output links to each other with microprocessor, communication module, pressure sensor unit respectively, antenna and communication module link to each other, the antenna is installed on monitoring terminal body.
Optionally, the main battery module includes interconnect's output switching circuit and main battery, still have emergent battery in the water pressure test probe, the cable of emergent battery links to each other with the input of output switching circuit through sealed wire protection sleeve after passing the hole of erection column, the control end and the microprocessor of output switching circuit link to each other, the output terminal of main battery links to each other with microprocessor's voltage acquisition end, microprocessor regularly patrol and examine the voltage of main battery, and control output switching circuit switches and adopts emergent battery power supply when the voltage of main battery is less than the setting value, otherwise control output switching circuit adopts main battery power supply.
Optionally, a liquid level sensor is further arranged at the bottom of the monitoring terminal body, the output end of the liquid level sensor is connected with a microprocessor, and the microprocessor sends an alarm message that the fire hydrant is opened to a specified remote host when the liquid level sensor detects liquid.
Optionally, the water pressure detecting probe is also provided with a pressure switch, a cable of the pressure switch passes through an inner hole of the mounting column and then is connected with the microprocessor through a sealed wire protection sleeve, and the pressure switch outputs a detection trigger signal to wake up the microprocessor when the pressure is lower than a set value or higher than the set value.
Optionally, the water pressure test probe includes the mounting panel and locates the end box of mounting panel bottom, the top of mounting panel is located to the erection column, pressure sensor unit, pressure switch all install in end box, and pressure sensor unit, pressure switch's detection mouth all is located the side of end box.
Optionally, a sealing groove for placing a sealing ring is arranged on the top surface of the mounting plate.
Optionally, the monitoring terminal body is further provided with a mounting through hole for mounting the fire hydrant, and the middle part of the monitoring terminal body is provided with a first threaded hole for mounting the fire hydrant operation rod.
The invention provides an intelligent outdoor fire hydrant, which comprises a fire hydrant shell with a valve core, wherein the remote water pressure monitoring terminal of the intelligent outdoor fire hydrant is installed at an opening at the top end of the fire hydrant shell, an operating rod matched with threads is installed in a first threaded hole of the remote water pressure monitoring terminal of the intelligent outdoor fire hydrant, the lower end of the operating rod is connected with the valve core through a connecting piece, a through hole is formed in the valve core, and an installation column of the remote water pressure monitoring terminal of the intelligent outdoor fire hydrant is installed in the through hole.
The invention provides an intelligent outdoor fire hydrant, which comprises a fire hydrant shell with a valve core, wherein a locking cover plate is arranged at an opening at the top end of the fire hydrant shell, a second threaded hole is formed in the locking cover plate, an operating rod in threaded fit is arranged in the second threaded hole, the lower end of the operating rod is connected with the valve core through a connecting piece, the intelligent outdoor fire hydrant remote water pressure monitoring terminal is arranged between the locking cover plate and the top end of the fire hydrant shell, a through hole is formed in the valve core, and a mounting column of the intelligent outdoor fire hydrant remote water pressure monitoring terminal is arranged in the through hole.
Compared with the prior art, the invention has the following advantages:
1. the invention is inserted and installed in the open hole at the top end of the fire hydrant, the quick installation and maintenance can be realized without excavating the outdoor fire hydrant with the existing bottom connecting flange which is generally buried in soil or even under concrete, the structure of the existing fire hydrant is not damaged, the structure is small and exquisite, the size of the fire hydrant is matched with that of the existing fire hydrant product, the installation is convenient and quick, and the invention has the advantages of convenient structure installation, easy maintenance, damage prevention and low cost.
2. The invention is installed at the top end of the fire hydrant, the network signal is not easy to be blocked, and the data transmission is stable and reliable.
3. The intelligent outdoor fire hydrant remote water pressure monitoring terminal is arranged at the opening of the top end of the fire hydrant, and the top end of the fire hydrant is provided with the protective cap, so that the intelligent outdoor fire hydrant remote water pressure monitoring terminal is not easy to damage, and maintenance can be carried out by disassembling the protective cap, and the maintenance is convenient and quick.
Drawings
Fig. 1 is a schematic perspective view of a remote hydraulic pressure monitoring terminal of an intelligent outdoor hydrant according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a monitoring terminal body according to a first embodiment of the present invention.
Fig. 3 is a schematic perspective view of a water pressure detecting probe according to a first embodiment of the present invention.
Fig. 4 is a schematic diagram of an electrical schematic frame structure according to a first embodiment of the present invention.
Fig. 5 is a cross-sectional view of a fire hydrant using an intelligent outdoor fire hydrant remote water pressure monitoring terminal according to an embodiment of the present invention.
Fig. 6 is a cross-sectional view of a fire hydrant using a remote water pressure monitoring terminal of a second intelligent outdoor fire hydrant according to an embodiment of the present invention.
Legend description: 1. monitoring a terminal body; 11. a mounting base; 12. mounting through holes; 13. a first threaded hole; 2. a wire protection sleeve; 3. a water pressure detection probe; 301. a mounting plate; 302. a bottom box; 31. a mounting column; 32. a pressure sensor unit; 33. an emergency battery; 34. a pressure switch; 35. sealing grooves; 4. a control unit; 41. a microprocessor; 42. a communication module; 43. a main battery module; 431. an output switching circuit; 432. a main battery; 44. an antenna; 45. a temperature sensor; 46. a liquid level sensor; 5. a fire hydrant casing; 51. a valve core; 511. a through hole; 52. an operation lever; 521. a connecting piece; 53. locking the cover plate; 531. and a second threaded hole.
Detailed Description
Embodiment one:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the intelligent outdoor fire hydrant remote water pressure monitoring terminal of this embodiment includes the monitoring terminal body 1, the wire protecting sleeve 2 and the water pressure detecting probe 3 that link to each other in proper order, be equipped with the control unit 4 in the monitoring terminal body 1, monitoring terminal body 1 middle part is equipped with the through-hole and the bottom is equipped with the mount pad 11 that is used for inserting and installs in the fire hydrant top trompil, the top of water pressure detecting probe 3 is equipped with the erection column 31 that is used for installing the through-hole on the fire hydrant case, be equipped with pressure sensor unit 32 on the water pressure detecting probe 3, the cable of pressure sensor unit 32 passes behind the hole of erection column 31 and is connected with the control unit 4 electricity through sealed wire protecting sleeve 2. The intelligent outdoor fire hydrant remote water pressure monitoring terminal of this embodiment inserts and installs in the fire hydrant top trompil, need not to excavate current bottom flange and generally for burying the outdoor fire hydrant under soil even concrete and can realize quick installation and maintenance, simple to operate is swift moreover because install on the fire hydrant top, its network signal is also difficult to receive the hindrance, and data transmission is reliable and stable.
As shown in fig. 3, the middle part of the monitoring terminal body 1 is provided with a through hole for inserting and installing an operating rod of the outdoor fire hydrant, the bottom is provided with a mounting seat 11 for inserting and installing in a hole at the top end of the fire hydrant, a mounting step is formed between the mounting seat 11 and the monitoring terminal body 1, and the mounting step is supported at the section of the hole at the top end of the fire hydrant. The upper portion of monitor terminal body 1 is equipped with the upper cover that can open (fig. 3 is for demolising the upper cover state), is equipped with the sealing washer between upper cover and the monitor terminal body 1, in addition, is seal structure design between monitor terminal body 1 bottom and the wire protection sleeve 2, through above-mentioned design, can make the waterproof grade of monitor terminal body 1 reach IP68. Referring to fig. 3, one side of the interior of the monitoring terminal body 1 is used for placing a circuit board of the control unit 4, and the other side is a battery compartment. In this embodiment, the monitoring terminal body 1 is made of plastic, which has good pressure resistance and long service life, and can prevent the monitoring terminal body from shielding network signals, thereby ensuring the stability and reliability of network data transmission.
The wire protection sleeve 2 is used for protecting the cable inside, and the cable between the monitoring terminal body 1 and the water pressure detection probe 3 is arranged in the line sealing sheath 13 in a penetrating way, so that the effects of protecting and sealing the cable can be achieved.
As shown in fig. 4, the control unit 4 includes a microprocessor 41, a communication module 42, a main battery module 43, and an antenna 44, the communication module 42 and the pressure sensor unit 32 are respectively connected to the microprocessor 41, the output end of the main battery module 43 is respectively connected to the microprocessor 41, the communication module 42, and the pressure sensor unit 32, the antenna 44 is connected to the communication module 42, and the antenna 44 is mounted on the monitoring terminal body 1. In this embodiment, the through hole with the opening on the outer wall of the monitoring terminal body 1 and the internal communication is provided, the antenna 44 is inserted into the through hole to ensure reliable network transmission temperature, the end of the through hole is sealed, and the manner of the built-in antenna 44 can ensure the quality of communication signals and prevent the antenna 44 from being damaged. In this embodiment, the communication module 42 is a narrowband internet of things (NB-IoT) communication module, and adopts a narrowband internet of things (NB-IoT) communication technology, so that the communication module is provided with a plurality of nodes (the number of communication nodes is not limited), is stable and reliable, and has the following four characteristics that data is not lost: firstly, wide coverage will provide improved indoor coverage, with NB-IoT gain 20dB over existing networks at the same frequency band, coverage area 100 times larger; secondly, the system has the capability of supporting mass connection, one NB-IoT sector can support 10 ten thousand connections, and supports low-delay sensitivity, ultra-low equipment cost, low equipment power consumption and an optimized network architecture; thirdly, lower power consumption, the standby time of the NB-IoT terminal module can be as long as 10 years; fourth, the NB-IoT communication module is not very inexpensive at lower module cost.
In the working state, the microprocessor 41 collects the water pressure information of the intelligent outdoor hydrant at regular time through the pressure sensor unit 32, sends data to a big data server of the cloud through the communication module 42 and the antenna 44, manages and maintains the hydrant in real time through the big data platform, and for example, the mobile terminal can inquire monitoring data sent by the microprocessor 41 through an application program APP.
As shown in fig. 4, the main battery module 43 includes an output switching circuit 431 and a main battery 432 which are connected to each other, the water pressure detecting probe 3 is further provided with an emergency battery 33, a cable of the emergency battery 33 is connected to an input end of the output switching circuit 431 through the sealed wire protection sleeve 2 after passing through an inner hole of the mounting post 31, a control end of the output switching circuit 431 is connected to the microprocessor 41, an output terminal of the main battery 432 is connected to a voltage collecting end of the microprocessor 41, the microprocessor 41 periodically checks the voltage of the main battery 432, and when the voltage of the main battery 432 is lower than a set value, the output switching circuit 431 is controlled to switch to be powered by the emergency battery 33, otherwise, the output switching circuit 431 is controlled to be powered by the main battery 432.
When the main battery 432 cannot normally operate at an ultralow temperature, the water pressure detection probe 3 is placed in the fire-fighting pipeline water pressure, the pipeline water pressure is running water, the pipeline water pressure is buried underground and cannot be frozen, and the built-in emergency battery 33 can be maintained at more than 0 ℃, so that the emergency battery 33 can normally operate. The microprocessor 41 can be automatically switched to the emergency battery 33 to start the emergency battery 33 to supply power, so that the defect that the availability of the main battery 432 is insufficient at the limit ambient temperature of the pressure detection terminal can be effectively overcome, and the availability and reliability of equipment are ensured. In the extreme low temperature environment, the lithium battery has extremely poor carrying capacity, the water pressure detection probe 3 of the embodiment is arranged in the fire water body of the underground pipe network, the availability of the emergency battery 33 is kept by utilizing the underground temperature of the fire water body, a long-acting reliable emergency power supply is provided for the water pressure monitoring terminal, the problem that the main battery has weak carrying capacity at the extreme environment temperature of the water pressure monitoring terminal can be effectively solved, the emergency battery 33 is started to ensure the stable and reliable operation work of the water pressure monitoring terminal, and the water pressure detection probe is applicable to water pressure, air pressure, hydraulic pressure and the like detection, and is particularly applicable to the water pressure detection of an outdoor fire hydrant.
In this embodiment, a battery compartment (not shown) is disposed in the bottom case 302, the battery compartment is communicated with the inner hole of the mounting column 31, the emergency battery 33 is disposed in the battery compartment, and the door of the battery compartment is sealed by welding, so that the volume of the bottom case 302 can be smaller and more compact, the bottom case 302 can be conveniently mounted in a narrow space, the mounting of the emergency battery 333 can be simplified, and the welded door 15 is firm and reliable in structure and good in impact resistance.
As shown in fig. 4, the control unit 4 further includes a temperature sensor 45, an output end of the temperature sensor 45 is connected to the microprocessor 41, and the microprocessor 41 periodically patrol and collect the temperature of the temperature sensor 45, and sends a fire alarm message to a designated remote host when the temperature exceeds a set value.
As shown in fig. 1 and 4, the bottom of the monitoring terminal body 1 is further provided with a liquid level sensor 46, an output end of the liquid level sensor 46 is connected with a microprocessor 41, the microprocessor 41 periodically patrols and examines the liquid level signal detected by the liquid level sensor 46, and when detecting the liquid, an alarm message that a fire hydrant is opened is sent to a specified remote host.
The control unit 4 of the embodiment further comprises a geographic position detection module and a gyroscope, wherein the geographic position detection module and the gyroscope are respectively connected with the microprocessor 41, the microprocessor 41 periodically patrol and collect geographic position signals detected by the geographic position detection module, and if the geographic position is detected to be changed, an outdoor hydrant stolen message is sent to a specified remote host; the microprocessor 41 periodically patrol and collect the attitude signal detected by the gyroscope, and if the attitude signal is detected to incline, the microprocessor sends a message that the outdoor hydrant is impacted and inclined to a specified remote host. The outdoor hydrant position and theft can be monitored by using the geographic position detection module to detect the geographic position information, and the collision and inclination can be monitored by using the attitude information detected by the gyroscope.
The outer wall of the mounting column 31 in this embodiment is provided with external threads, which facilitate mounting and sealing.
In this embodiment, the pressure sensor unit 32 includes a pressure sensor and a pressure transmitter connected to each other, the pressure sensor is installed in the bottom case 302 and a detection port is provided on an outer wall of the bottom case 302.
As shown in fig. 4, the water pressure detecting probe 3 is also provided with a pressure switch 34, a cable of the pressure switch 34 passes through an inner hole of the mounting column 31 and is connected with the microprocessor 41 through the sealed wire protection sleeve 2, and the pressure switch 34 outputs a detection trigger signal to wake up the microprocessor 41 when the pressure is lower than a set value or higher than the set value.
As shown in fig. 2, the water pressure detecting probe 3 comprises a mounting plate 301 and a bottom box 302 arranged at the bottom of the mounting plate 301, a mounting column 31 is arranged at the top of the mounting plate 301, a pressure sensor unit 32 and a pressure switch 34 are arranged in the bottom box 302, and detection ports of the pressure sensor unit 32 and the pressure switch 34 are arranged on the side face of the bottom box 302, so that pressure impact from detected gas or liquid from the front face can be prevented, and the detection precision and the service life of the pressure sensor unit 32 and the pressure switch 34 can be ensured. In this embodiment, the bottom box 302 is provided with a mounting hole which is arranged in a penetrating manner, the mounting hole is communicated with the inner hole of the mounting column 31, the pressure switch 34 is mounted at one end of the mounting hole, and the pressure sensor unit 32 is mounted at the other end of the mounting hole, so that the volume of the bottom box 302 can be smaller and more compact in the above manner, the bottom box 302 can be mounted in a narrow space conveniently, and the mounting of the pressure sensor unit 32 and the pressure switch 34 can be simplified.
As shown in fig. 2, a sealing groove 35 for placing a sealing ring is provided on the top surface of the mounting plate 301. The top surface of the mounting plate 301 contacts the valve body of the hydrant, and by placing a seal ring in the seal groove 35, the top surface of the mounting plate 1 and the valve body of the hydrant can be sealed, and leakage of the mounting surface of the mounting plate 301 can be prevented.
As shown in fig. 5, this embodiment further provides an intelligent outdoor fire hydrant, including a fire hydrant casing 5 with a valve core 51, a locking cover plate 53 is installed at an opening at the top end of the fire hydrant casing 5, a second threaded hole 531 is provided on the locking cover plate 53, an operation rod 52 in threaded fit is installed in the second threaded hole 531, the lower end of the operation rod 52 is connected with the valve core 51 through a connecting piece 521, the foregoing intelligent outdoor fire hydrant remote water pressure monitoring terminal is installed between the locking cover plate 53 and the top end of the fire hydrant casing 5, a through hole 511 is provided on the valve core 51, and a mounting post 31 of the intelligent outdoor fire hydrant remote water pressure monitoring terminal is installed in the through hole 511.
The working principle of the intelligent outdoor hydrant remote water pressure monitoring terminal is as follows:
the valve core and the valve body of the fire hydrant casing are tightly matched to realize sealing under the default state, the microprocessor 41 is in the dormant state by default, and the microprocessor 41 can be programmed or configured to perform the following two types of operations:
1. timing inspection operations, comprising: (1) The water pressure detected by the water pressure detecting probe 3 is periodically inspected, and a detected fire water pressure signal is sent to a specified remote host; (2) The voltage of the main battery 432 is periodically checked, and when the voltage of the main battery 432 is lower than a set value, the control output switching circuit 431 switches to power supply by the emergency battery 33 and sends a message for switching the power supply of the emergency battery 33 to a specified remote host. (3) The microprocessor 41 periodically polls the temperature of the acquisition temperature sensor 45, transmits water temperature information to a designated remote host, and transmits a fire alarm message to the designated remote host when the temperature exceeds a set value. (4) The microprocessor 41 periodically checks the level sensor 46 for a level signal and upon detection of a liquid sends an alarm message to a designated remote host that the hydrant is open. (5) The microprocessor 41 periodically patrol and collect the geographic position signal detected by the geographic position detection module, send the geographic position information to the appointed remote host, and if the remote host detects that the geographic position is changed, send the outdoor hydrant stolen message to the appointed remote host. (6) The microprocessor 41 periodically patrol and collect the attitude signal detected by the gyroscope, and if the attitude signal is detected to incline, the microprocessor sends a message that the outdoor hydrant is impacted and inclined to a specified remote host. The inspection periods of the timing inspection operations (1) to (6) may be the same, or the periods of the partial operations may be set to be different according to the need, but the minimum inspection period T may be selected so that the inspection periods of the timing inspection operations (1) to (6) are all multiples of the minimum inspection period T, so that the number of wake-up times of the microprocessor 41 may be reduced, thereby achieving the purpose of saving energy.
2. Emergency operation triggered by abnormal pressure: the output of the detection trigger signal wakes up the microprocessor 41 when the pressure switch 34 is below the set point or above the set point due to an unexpected situation. Or, after the operating lever is rotated to enable the operating lever to move upwards along the vertical direction, a gap is formed between the valve core and the valve body of the fire hydrant casing, so that water in the fire hydrant pipe flows out from the gap and flows out from a water outlet arranged on the side surface of the fire hydrant casing, and at the moment, the pressure of the pressure switch 34 is lower than a set value, and a detection trigger signal is output to wake up the microprocessor 41. In the awake state, the microprocessor 41 performs the following six types of emergency operations: (1) Detecting the water pressure detected by the water pressure detecting probe 3 and sending a detected water pressure signal to a specified remote host; (2) The voltage of the main battery 432 is detected, and when the voltage of the main battery 432 is lower than a set value, the control output switching circuit 431 switches the power supply with the emergency battery 33, and sends a message to a specified remote host to switch the power supply of the emergency battery 33. (3) The microprocessor 41 detects the temperature of the acquisition temperature sensor 45 and sends a fire alarm message to a designated remote host when the temperature exceeds a set point. (4) The microprocessor 41 detects the liquid level sensor 46 detects a liquid level signal and upon detection of liquid sends an alarm message to a designated remote host that the fire hydrant is open. (5) The microprocessor 41 detects the geographical position signal detected by the geographical position detection module, and if a change in geographical position is detected, sends an outdoor hydrant stolen message to a designated remote host. (6) The microprocessor 41 detects the attitude signal detected by the acquisition gyro, and if it detects that the attitude signal is inclined, it sends a message to the specified remote host that the outdoor hydrant is bumped and inclined.
The intelligent outdoor fire hydrant remote water pressure monitoring terminal of the embodiment combines two types of operation modes of timing inspection operation and emergency operation triggered by pressure abnormality, and the inspection periods of the timing inspection operations (1) - (6) are all multiples of the minimum inspection period T, so that the awakening times of the microprocessor 41 can be reduced, the purpose of saving energy is achieved, and the low-power consumption design of the intelligent outdoor fire hydrant remote water pressure monitoring terminal of the embodiment is realized by combining the design of the emergency battery 33, so that the service life of the intelligent outdoor fire hydrant remote water pressure monitoring terminal of the embodiment can reach more than 5 years, and the emergency battery 33 is positioned on the fire water side of the fire hydrant, meets the normal operation of the system at the ultra-low temperature of-45 ℃, and can be suitable for outdoor fire hydrant remote water pressure monitoring in cold areas/seasons.
In summary, the intelligent remote water pressure monitoring terminal for the outdoor hydrant can be used for monitoring the working state and the outdoor fire water supply condition of the outdoor hydrant, is installed on the upper flange of the water outlet of the outdoor hydrant, and realizes wireless remote monitoring through the narrow-band internet of things (NB-IoT). The intelligent outdoor fire hydrant remote water pressure monitoring terminal of the embodiment has the advantages of accurately and timely sensing fire water pressure and water temperature changes, and accurately and timely monitoring the positions of the fire hydrant, stealing, impacting, tilting and water taking/water leakage states. The monitoring data are uploaded to the big data server at regular time, and the fire hydrant is managed and maintained in real time through the big data platform. The remote water pressure monitoring terminal of the intelligent outdoor fire hydrant has no damage to the structure of the existing fire hydrant, is small in structure, is matched with the product size of the existing fire hydrant, is not easy to damage, is easy to install and maintain, and has a waterproof grade reaching IP68. The terminal is powered by a battery, the system is designed with low power consumption, and the service life is more than 5 years. The remote water pressure monitoring terminal of the intelligent outdoor hydrant integrates a standby battery 33, and the battery 3 is placed in the water pressure detecting probe 3, so that the normal operation of the system at the ultralow temperature of-45 ℃ is satisfied.
Embodiment two:
the intelligent outdoor hydrant remote water pressure monitoring terminal of the embodiment is basically the same as the first embodiment, and the main difference points are as follows: the remote water pressure monitoring terminal of the intelligent outdoor fire hydrant in the embodiment is of an integrated structure with a locking cover plate of the fire hydrant, so that an additional locking cover plate is not needed, and referring to fig. 6, in order to achieve the integrated structure with the locking cover plate of the fire hydrant, the monitoring terminal body 1 is further provided with a mounting through hole 12 for mounting the fire hydrant, and the middle part of the monitoring terminal body 1 is provided with a first threaded hole 13 for mounting a fire hydrant operating rod. Through above-mentioned with the locking apron of fire hydrant for integrated form structure for the long-range water pressure monitoring terminal of intelligent outdoor fire hydrant of this embodiment can replace the locking apron of fire hydrant, makes product simple structure, and the installation is more convenient, and the cost is lower.
As shown in fig. 6, this embodiment further provides an intelligent outdoor fire hydrant, including a fire hydrant casing 5 with a valve core 51, the top opening of the fire hydrant casing 5 is provided with the aforementioned intelligent outdoor fire hydrant remote water pressure monitoring terminal, the first threaded hole 13 of the intelligent outdoor fire hydrant remote water pressure monitoring terminal is provided with a threaded operation rod 52, the lower end of the operation rod 52 is connected with the valve core 51 through a connecting piece 521, the valve core 51 is provided with a through hole 511, and the mounting post 31 of the intelligent outdoor fire hydrant remote water pressure monitoring terminal is mounted in the through hole 511. The working principle and the working process of the intelligent outdoor hydrant remote water pressure monitoring terminal and the intelligent outdoor hydrant remote water pressure monitoring process are identical to those of the first embodiment, so that the intelligent outdoor hydrant remote water pressure monitoring terminal and the intelligent outdoor hydrant remote water pressure monitoring process are not repeated here.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (7)
1. An intelligent outdoor fire hydrant remote water pressure monitoring terminal which is characterized in that: the fire hydrant comprises a monitoring terminal body (1), a wire protection sleeve (2) and a water pressure detection probe (3) which are sequentially connected, wherein a control unit (4) is arranged in the monitoring terminal body (1), a through hole is formed in the middle of the monitoring terminal body (1), a mounting seat (11) used for being inserted into a hole formed in the top end of a fire hydrant is arranged at the bottom of the monitoring terminal body, a mounting column (31) used for being mounted in a through hole formed in a valve core of the fire hydrant is arranged at the top of the water pressure detection probe (3), a pressure sensor unit (32) is arranged on the water pressure detection probe (3), and a cable of the pressure sensor unit (32) passes through the inner hole of the mounting column (31) and is electrically connected with the control unit (4) through the sealed wire protection sleeve (2); the control unit (4) comprises a microprocessor (41), a communication module (42), a main battery module (43) and an antenna (44), wherein the communication module (42) and the pressure sensor unit (32) are respectively connected with the microprocessor (41), the output end of the main battery module (43) is respectively connected with the microprocessor (41), the communication module (42) and the pressure sensor unit (32), the antenna (44) is connected with the communication module (42), and the antenna (44) is arranged on the monitoring terminal body (1); the main battery module (43) comprises an output switching circuit (431) and a main battery (432) which are connected with each other, the water pressure detection probe (3) is also provided with an emergency battery (33), a cable of the emergency battery (33) passes through an inner hole of the mounting column (31) and is connected with the input end of the output switching circuit (431) through a sealed wire protection sleeve (2), the control end of the output switching circuit (431) is connected with the microprocessor (41), the output terminal of the main battery (432) is connected with the voltage acquisition end of the microprocessor (41), the microprocessor (41) periodically polls the voltage of the main battery (432), the emergency battery (33) is used for switching when the voltage of the main battery (432) is lower than a set value, and otherwise, the output switching circuit (431) is used for supplying power by the main battery (432); the hydraulic pressure detection probe (3) is also provided with a pressure switch (34), a cable of the pressure switch (34) passes through an inner hole of the mounting column (31) and then is connected with the microprocessor (41) through the sealed wire protection sleeve (2), and the pressure switch (34) outputs a detection trigger signal to wake up the microprocessor (41) when the pressure is lower than a set value or higher than the set value.
2. The intelligent outdoor hydrant remote water pressure monitoring terminal according to claim 1, wherein: the bottom of monitoring terminal body (1) still is equipped with liquid level sensor (46), the output of liquid level sensor (46) links to each other with microprocessor (41), microprocessor (41) are when liquid level sensor (46) detects liquid to appointed remote host computer send the warning message that the fire hydrant was opened.
3. The intelligent outdoor hydrant remote water pressure monitoring terminal according to claim 1, wherein: the water pressure detection probe (3) comprises a mounting plate (301) and a bottom box (302) arranged at the bottom of the mounting plate (301), the mounting column (31) is arranged at the top of the mounting plate (301), the pressure sensor unit (32) and the pressure switch (34) are all arranged in the bottom box (302), and detection ports of the pressure sensor unit (32) and the pressure switch (34) are all arranged on the side face of the bottom box (302).
4. The intelligent outdoor hydrant remote water pressure monitoring terminal according to claim 3, wherein: a sealing groove (35) for placing a sealing ring is formed in the top surface of the mounting plate (301).
5. The intelligent outdoor hydrant remote water pressure monitoring terminal according to any one of claims 1 to 4, wherein: the fire hydrant is characterized in that the monitoring terminal body (1) is further provided with a mounting through hole (12) for mounting the fire hydrant, and a first threaded hole (13) for mounting the fire hydrant operation rod is formed in the middle of the monitoring terminal body (1).
6. The utility model provides an outdoor fire hydrant of intelligence, includes fire hydrant shell (5) with case (51), its characterized in that, the top trompil department of fire hydrant shell (5) installs the long-range water pressure monitoring terminal of intelligent outdoor fire hydrant of claim 5, install screw-thread fit's action bars (52) in the first screw hole (13) of the long-range water pressure monitoring terminal of intelligent outdoor fire hydrant, the lower extreme of action bars (52) is passed through connecting piece (521) and is linked to each other with case (51), be equipped with through hole (511) on case (51), install in through hole (511) installation post (31) of the long-range water pressure monitoring terminal of intelligent outdoor fire hydrant.
7. The utility model provides an outdoor fire hydrant of intelligence, includes fire hydrant shell (5) with case (51), locking apron (53) are installed in the top trompil department of fire hydrant shell (5), be equipped with second screw hole (531) on locking apron (53), install screw-thread fit's action bars (52) in second screw hole (531), the lower extreme of action bars (52) links to each other with case (51) through connecting piece (521), a serial communication port, install the long-range water pressure monitoring terminal of the outdoor fire hydrant of intelligence in any one of claims 1-5 between the top of locking apron (53) and fire hydrant shell (5), establish through hole (511) on case (51), install in through hole (511) installation post (31) of the long-range water pressure monitoring terminal of the outdoor fire hydrant of intelligence.
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| CN112878433B (en) * | 2021-01-18 | 2022-09-16 | 百安消防科技有限公司 | Intelligent fire hydrant and system thereof |
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| WO2023239832A1 (en) * | 2022-06-10 | 2023-12-14 | Mueller International, Llc | Dual sensor for hydrant |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001297388A (en) * | 2000-04-17 | 2001-10-26 | Hamanen:Kk | Instrument for measuring city water pressure at fireplug installing position |
| CN201885856U (en) * | 2010-12-21 | 2011-06-29 | 中国船舶重工集团公司第七�三研究所 | Leakage monitoring system for ship fire-fighting valve |
| EP2749860A1 (en) * | 2012-12-31 | 2014-07-02 | Hinni AG | Monitoring device for a water supply network |
| CN204781115U (en) * | 2015-07-08 | 2015-11-18 | 深圳合创永安智能科技有限公司 | On -line monitoring's fire hydrant |
| CN105241603A (en) * | 2015-11-02 | 2016-01-13 | 贵阳博烁科技有限公司 | Water supply pipe network pressure monitoring terminal and monitoring system |
| CN206132179U (en) * | 2016-11-03 | 2017-04-26 | 厦门点云数据科技有限公司 | Intelligence water level monitoring system |
| CN107785984A (en) * | 2016-08-30 | 2018-03-09 | 绍兴厚道自动化设备有限公司 | A kind of Double-battery powered equipment with intelligent handoff functionality |
| EP3293315A1 (en) * | 2016-09-09 | 2018-03-14 | Hawle Service GmbH | Device for monitoring a hydrant |
| CN107866022A (en) * | 2017-11-08 | 2018-04-03 | 麦克传感器股份有限公司西安分公司 | A kind of integral and intelligent fire hydrant |
| CN207314437U (en) * | 2017-09-15 | 2018-05-04 | 威特龙消防安全集团股份公司 | A kind of fire hydrant water pressure monitoring device |
| WO2018154571A1 (en) * | 2017-02-21 | 2018-08-30 | Hydrantech Ltd. | Method and system for identifying flow in hydrant outlet |
| CN109238549A (en) * | 2018-10-18 | 2019-01-18 | 湖南启泰传感科技有限公司 | A kind of outdoor fire hydrant hydraulic pressure real-time monitoring device |
| CN208511771U (en) * | 2018-07-04 | 2019-02-19 | 杭州智缤科技有限公司 | A kind of fire hydrant intelligence hydraulic pressure monitoring device based on the communication of NB-IoT Internet of Things |
| CN109708805A (en) * | 2019-01-31 | 2019-05-03 | 安徽辰控智能科技有限公司 | Integral multifunctional fire hydrant water pressure monitor |
| CN208844664U (en) * | 2018-07-04 | 2019-05-10 | 杭州智缤科技有限公司 | A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things |
| CN109883477A (en) * | 2019-03-01 | 2019-06-14 | 西安理工大学 | It is a kind of can Rapid Implementation outdoor fire hydrant long-distance monitorng device |
| CN210400691U (en) * | 2019-08-16 | 2020-04-24 | 湖南启泰传感科技有限公司 | Intelligent outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8589092B2 (en) * | 2010-06-30 | 2013-11-19 | 2236128 Ontario Inc. | Non interrupting on-line water distribution pressure monitoring system for compression type wet and dry barrel fire hydrants |
-
2019
- 2019-08-16 CN CN201910758526.9A patent/CN110398312B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001297388A (en) * | 2000-04-17 | 2001-10-26 | Hamanen:Kk | Instrument for measuring city water pressure at fireplug installing position |
| CN201885856U (en) * | 2010-12-21 | 2011-06-29 | 中国船舶重工集团公司第七�三研究所 | Leakage monitoring system for ship fire-fighting valve |
| EP2749860A1 (en) * | 2012-12-31 | 2014-07-02 | Hinni AG | Monitoring device for a water supply network |
| CN204781115U (en) * | 2015-07-08 | 2015-11-18 | 深圳合创永安智能科技有限公司 | On -line monitoring's fire hydrant |
| CN105241603A (en) * | 2015-11-02 | 2016-01-13 | 贵阳博烁科技有限公司 | Water supply pipe network pressure monitoring terminal and monitoring system |
| CN107785984A (en) * | 2016-08-30 | 2018-03-09 | 绍兴厚道自动化设备有限公司 | A kind of Double-battery powered equipment with intelligent handoff functionality |
| EP3293315A1 (en) * | 2016-09-09 | 2018-03-14 | Hawle Service GmbH | Device for monitoring a hydrant |
| CN206132179U (en) * | 2016-11-03 | 2017-04-26 | 厦门点云数据科技有限公司 | Intelligence water level monitoring system |
| WO2018154571A1 (en) * | 2017-02-21 | 2018-08-30 | Hydrantech Ltd. | Method and system for identifying flow in hydrant outlet |
| CN207314437U (en) * | 2017-09-15 | 2018-05-04 | 威特龙消防安全集团股份公司 | A kind of fire hydrant water pressure monitoring device |
| CN107866022A (en) * | 2017-11-08 | 2018-04-03 | 麦克传感器股份有限公司西安分公司 | A kind of integral and intelligent fire hydrant |
| CN208511771U (en) * | 2018-07-04 | 2019-02-19 | 杭州智缤科技有限公司 | A kind of fire hydrant intelligence hydraulic pressure monitoring device based on the communication of NB-IoT Internet of Things |
| CN208844664U (en) * | 2018-07-04 | 2019-05-10 | 杭州智缤科技有限公司 | A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things |
| CN109238549A (en) * | 2018-10-18 | 2019-01-18 | 湖南启泰传感科技有限公司 | A kind of outdoor fire hydrant hydraulic pressure real-time monitoring device |
| CN109708805A (en) * | 2019-01-31 | 2019-05-03 | 安徽辰控智能科技有限公司 | Integral multifunctional fire hydrant water pressure monitor |
| CN109883477A (en) * | 2019-03-01 | 2019-06-14 | 西安理工大学 | It is a kind of can Rapid Implementation outdoor fire hydrant long-distance monitorng device |
| CN210400691U (en) * | 2019-08-16 | 2020-04-24 | 湖南启泰传感科技有限公司 | Intelligent outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
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