CN113310677A - Fire hydrant monitoring devices - Google Patents
Fire hydrant monitoring devices Download PDFInfo
- Publication number
- CN113310677A CN113310677A CN202110587108.5A CN202110587108A CN113310677A CN 113310677 A CN113310677 A CN 113310677A CN 202110587108 A CN202110587108 A CN 202110587108A CN 113310677 A CN113310677 A CN 113310677A
- Authority
- CN
- China
- Prior art keywords
- fire hydrant
- circuit
- water
- signal
- processing unit
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
A fire hydrant monitoring device comprises a battery module, a power supply conversion circuit connected with the battery module, an acceleration sensor and a water sensor which are connected with the power supply conversion circuit, a signal processor connected with the acceleration sensor and the water sensor, a voltage detection module connected with the power supply conversion circuit, a central processing unit connected with the voltage detection module and the signal processor, and an NB-IOT communication module connected with the power supply conversion circuit and the central processing unit; the invention adopts the battery for power supply, and realizes the detection functions of water discharge and water shut-off through the water immersion sensor; through the triaxial sensor, realize uncapping and the striking detection function of fire hydrant to when realizing low-power consumption long-life, real-time upload the platform with equipment status.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of fire fighting equipment, in particular to a fire hydrant monitoring device.
[ background of the invention ]
At present, the fire hydrant generally has the purposes of municipal water taking, fire fighting water taking and the like, and particularly is very important for sudden fire fighting water taking. The phenomenon of illegal water taking in construction sites, municipal administration and the like every year causes serious water loss and serious damage to the fire hydrant, so that the fire hydrant cannot play a normal role; the conventional fire hydrant anti-theft method adopts a mechanical locking type anti-theft fire hydrant, the method increases the difficulty of illegal water use and brings trouble to the compliance water use, and an anti-theft fire hydrant wrench is easy to obtain, so that the anti-theft measures are easy to lose effectiveness.
Therefore, the fire hydrant monitoring device capable of monitoring the states of boiling water, closing water, impacting and uncovering of the fire hydrant is a problem to be solved in the field.
[ summary of the invention ]
In order to solve the above problems, the present invention provides a fire hydrant monitoring device, which includes a battery module, a power conversion circuit connected to the battery module, an acceleration sensor and a water sensor connected to the power conversion circuit, a signal processor connected to the acceleration sensor and the water sensor, a voltage detection module connected to the power conversion circuit, a central processing unit connected to the voltage detection module and the signal processor, and an NB-IOT communication module connected to the power conversion circuit and the central processing unit.
Further, the acceleration sensor is a three-axis acceleration sensor, and a LIS2DH12 circuit is arranged in the acceleration sensor; the central processing unit is an STM32F103RET6 chip.
Furthermore, the water sensor comprises a water immersion detection circuit, a signal processing circuit connected with the water immersion detection circuit, and a level pulse circuit connected with the signal processing circuit.
Further, the voltage detection module comprises a voltage detection part turn-off control circuit and a voltage detection circuit.
A fire hydrant monitoring device comprises the following steps:
the method comprises the following steps: detecting the water state of the fire hydrant through a water logging sensor;
step two: detecting the position state of the fire hydrant through an acceleration sensor;
step three: identifying the type of the pulse signal source through a central processing unit;
step four: and cloud communication is realized through the central processing unit and the NB-IOT communication module.
Furthermore, the first step is to detect whether water exists in the fire hydrant through the water immersion detection circuit, convert the state signal of the level type into a pulse signal through the signal processing circuit, and transmit the pulse signal to the central processing unit so as to distinguish two states of water switching on and water switching off.
Furthermore, one path of the level pulse circuit is directly connected to an input A of the exclusive-OR gate, the other path of the level pulse circuit is connected to an input B of the exclusive-OR gate after RC low-pass delay, the rising edge and the falling edge of the level signal of the water are converted into pulse signals by utilizing the time difference between the two signals, and the pulse width can be adjusted through RC parameters.
Furthermore, the step three-way resistor voltage division sampling battery voltage signal, in order to realize the low power consumption of the sampling circuit, a switch control circuit of the sampling circuit is set, the sampling circuit is turned on only when the central processing unit is in the awakening state, and the sampling circuit is turned off immediately after the sampling is finished, so that the zero power consumption of the circuit in the dormant state is realized.
Further, the NB-IOT communication module in the fourth step communicates with the central processing unit through a serial port, and can upload the abnormal signal to the cloud platform through the NB-IOT communication module, and can accept the sleep instruction and the related parameter configuration information sent by the platform.
Furthermore, the NB-IOT communication module can set parameters, automatically enters a PSM state under static work, has extremely low power consumption under the PSM state, and can immediately recover the networking work state by sending an AT instruction to the NB-IOT communication module through a serial port when the NB-IOT communication module needs to report the equipment state.
Compared with the prior art, the invention has the following beneficial effects:
1. the battery is adopted for power supply, and the water discharge and water cut-off detection functions are realized through the water immersion sensor.
2. The functions of uncovering and impact detection of the fire hydrant are realized through the three-axis sensor. And the device state is uploaded to the platform in real time while the low power consumption and the long service life are realized.
[ description of the drawings ]
FIG. 1 is a schematic diagram of the components of the fire hydrant monitoring device according to the present invention.
FIG. 2 is a schematic diagram of the electrical connections of the water sensor of the present invention.
FIG. 3 is a schematic circuit diagram of the voltage detection module according to the present invention.
[ detailed description ] embodiments
The directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are only used to explain and illustrate the present invention, but not to limit the scope of the present invention.
Referring to fig. 1, a composition structure of the fire hydrant monitoring device of the present invention is shown, which includes a battery module 1, a power conversion circuit 2 connected with the battery module, an acceleration sensor 3 and a water sensor 4 connected with the power conversion circuit, a signal processor 5 connected with the acceleration sensor 3 and the water sensor 4, a voltage detection module 6 connected with the power conversion circuit, a central processing unit 7 connected with the voltage detection module and the signal processor, and an NB-IOT communication module 8 connected with the power conversion circuit and the central processing unit, wherein the acceleration sensor 3 is a three-axis acceleration sensor, and a LIS2DH12 circuit is built in the acceleration sensor; the central processing unit is an STM32F103RET6 chip.
Referring to fig. 2, the water sensor 4 includes a water immersion detection circuit 401, a signal processing circuit 402 connected to the water immersion detection circuit, and a level pulse circuit 403 connected to the signal processing circuit, when water enters, the water immersion detection circuit 1 outputs a high level, in order to reduce power consumption, the output impedance of the water immersion detection circuit is usually very large, a weak signal output by the water immersion detection circuit 401 is converted into a level signal with strong driving capability by the signal processing circuit 402, and the level signal is output to the level pulse conversion circuit 403, and a resistor and a capacitor in the level pulse conversion circuit 403 need to be matched according to specific characteristics of a rear end circuit to meet requirements of different pulse widths; the level-shift pulse signal circuit 403 adopts a micro-power integrated exclusive-or gate 74AUP1G86 chip to drive and output.
Referring to fig. 3, the voltage detection module 6 includes a voltage detection section shutdown control circuit 601 and a voltage detection circuit 602. The voltage detection circuit 602 realizes divided voltage sampling of the battery voltage, and the voltage detection section turn-off control circuit 601 realizes power consumption turn-off control of the voltage detection circuit 602 to avoid excessive power consumption loss when sampling and sleep are not required.
The monitoring method of the fire hydrant monitoring device comprises the following steps:
1. detecting the water state of the fire hydrant through a water logging sensor;
the water immersion detection circuit 401 detects whether water exists in the fire hydrant or not, converts the state signal of the level type into a pulse signal through the signal processing circuit 402, and transmits the pulse signal to the central processing unit so as to distinguish two states of water boiling and water shut-off; one path of the level pulse circuit 403 is directly connected to the input a of the exclusive or gate, the other path is connected to the input B of the exclusive or gate after RC low-pass delay, the rising and falling edges of the level signal of water are converted into pulse signals by using the time difference between the two signals, and the pulse width can be adjusted by the RC parameter.
2. Detecting the position state of the fire hydrant through an acceleration sensor;
when the fire hydrant cover is rotated to be opened and the acceleration of the three-axis acceleration sensor changes, a trigger pulse signal is output; when the fire hydrant is abnormally impacted and the acceleration detected by the device exceeds a set vibration threshold value, a trigger pulse is also output.
3. Identifying the type of the pulse signal source through a central processing unit;
after all the trigger signals are operated, an STM32F103RET6 chip of a central processing unit is accessed, and the central processing unit judges according to the type of the current trigger signal source; meanwhile, a battery voltage signal is sampled through resistance voltage division, in order to realize low power consumption of the sampling circuit, a switch control circuit of the sampling circuit is arranged, the sampling circuit is turned on only when the central processing unit is in an awakening state, and the sampling circuit is turned off immediately after sampling is finished, so that zero power consumption of the circuit in a dormant state is realized.
4. Cloud communication is achieved through the central processing unit and the NB-IOT communication module;
the central processing unit is communicated with the NB-IOT communication module through a serial port, abnormal signals can be uploaded to the cloud platform through the NB-IOT communication module, and a sleep instruction and related parameter configuration information issued by the platform can be received; the NB-IOT communication module can set parameters, automatically enters a PSM state under static work, has extremely low power consumption under the PSM state, and can immediately recover the networking work state by the central processing unit sending an AT instruction to the NB-IOT communication module through a serial port when the NB-IOT communication module reports the equipment state.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a fire hydrant monitoring devices, its characterized in that, fire hydrant monitoring devices includes battery module (1), power conversion circuit (2) of being connected with battery module, acceleration sensor (3) and water logging sensor (4) of being connected with power conversion circuit, signal processor (5) of being connected with acceleration sensor (3) and water logging sensor (4), voltage detection module (6) of being connected with power conversion circuit, central processing unit (7) of being connected with voltage detection module and signal processor, NB-IOT communication module (8) of being connected with power conversion circuit and central processing unit.
2. A fire hydrant monitoring arrangement according to claim 1, characterised in that said acceleration sensor (3) is a three-axis acceleration sensor, incorporating a LIS2DH12 circuit; the central processing unit is an STM32F103RET6 chip.
3. A fire hydrant monitoring arrangement according to claim 1, characterised in that said water sensor (4) comprises a water immersion detection circuit (401), a signal processing circuit (402) connected to the water immersion detection circuit, a level pulse circuit (403) connected to the signal processing circuit.
4. A fire hydrant monitoring arrangement according to claim 1, characterised in that said voltage detection module (6) comprises a voltage detection section turn-off control circuit (601), a voltage detection circuit (602).
5. A fire hydrant monitoring apparatus, characterized in that a monitoring method of the fire hydrant monitoring apparatus comprises the steps of:
the method comprises the following steps: detecting the water state of the fire hydrant through a water logging sensor;
step two: detecting the position state of the fire hydrant through an acceleration sensor;
step three: identifying the type of the pulse signal source through a central processing unit;
step four: and cloud communication is realized through the central processing unit and the NB-IOT communication module.
6. The fire hydrant monitoring device according to claim 5, wherein said step one is to detect whether there is water in the fire hydrant by the flooding detection circuit, and to convert the level type state signal into a pulse signal by the signal processing circuit, and to transmit the signal to the cpu to distinguish between the water-on and water-off states.
7. A fire hydrant monitor according to claim 6 in which one of said level pulse circuit is connected directly to input A of the XOR gate and the other is connected to input B of the XOR gate after RC low pass delay, and the rising and falling edges of the level signal of water are converted into pulse signals by the time difference between the two signals, and the pulse width can be adjusted by the RC parameter.
8. The fire hydrant monitoring device according to claim 5, wherein said step of sampling the battery voltage signal through voltage division by resistors, and in order to achieve low power consumption of the sampling circuit, a switch control circuit of the sampling circuit is provided, the sampling circuit is turned on only when the central processing unit is in the wake-up state, and the sampling circuit is turned off immediately after sampling is finished, so as to achieve zero power consumption of the circuit in the sleep state.
9. The fire hydrant monitoring device according to claim 5, wherein the NB-IOT communication module in the fourth step communicates with the central processing unit through a serial port, can upload an abnormal signal to the cloud platform through the NB-IOT communication module, and can accept a sleep command and related parameter configuration information issued by the platform.
10. The fire hydrant monitoring device according to claim 5, wherein the NB-IOT communication module can set parameters, automatically enters a PSM state under static operation, has extremely low power consumption under the PSM state, and can immediately recover a networking operation state by the central processor sending an AT instruction to the NB-IOT communication module through a serial port when the NB-IOT communication module needs to report the equipment state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587108.5A CN113310677A (en) | 2021-05-27 | 2021-05-27 | Fire hydrant monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587108.5A CN113310677A (en) | 2021-05-27 | 2021-05-27 | Fire hydrant monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113310677A true CN113310677A (en) | 2021-08-27 |
Family
ID=77375797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110587108.5A Pending CN113310677A (en) | 2021-05-27 | 2021-05-27 | Fire hydrant monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113310677A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010048543A (en) * | 1999-11-27 | 2001-06-15 | 구자홍 | A sensing circuit of open or close for washer' door |
| CN107884533A (en) * | 2017-11-08 | 2018-04-06 | 苏州大学 | A kind of intelligent wireless water quality monitoring equipment and monitoring system |
| CN207881880U (en) * | 2018-03-16 | 2018-09-18 | 厦门致联科技有限公司 | A kind of intelligent fire pipeline hydraulic pressure detector based on NB-IoT technologies |
| CN208223543U (en) * | 2018-04-04 | 2018-12-11 | 深圳市北斗时空科技有限公司 | Indoor fireplug information acquisition system based on NB-IOT network |
| CN210574238U (en) * | 2019-11-12 | 2020-05-19 | 深圳心跳智能科技有限公司 | Intelligent detection module for real-time state of fire hydrant |
| CN210922986U (en) * | 2019-10-08 | 2020-07-03 | 北京艾能控制技术有限公司 | Pressure measuring device with abnormal vibration detection function |
| CN211149239U (en) * | 2019-12-06 | 2020-07-31 | 浙江大邦科技有限公司 | NB-IoT smoke sensing control system based on voltage sampling circuit |
| CN112688408A (en) * | 2020-12-28 | 2021-04-20 | 杭州电子科技大学 | Low-power-consumption ultrasonic energy collection circuit and use method thereof |
-
2021
- 2021-05-27 CN CN202110587108.5A patent/CN113310677A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010048543A (en) * | 1999-11-27 | 2001-06-15 | 구자홍 | A sensing circuit of open or close for washer' door |
| CN107884533A (en) * | 2017-11-08 | 2018-04-06 | 苏州大学 | A kind of intelligent wireless water quality monitoring equipment and monitoring system |
| CN207881880U (en) * | 2018-03-16 | 2018-09-18 | 厦门致联科技有限公司 | A kind of intelligent fire pipeline hydraulic pressure detector based on NB-IoT technologies |
| CN208223543U (en) * | 2018-04-04 | 2018-12-11 | 深圳市北斗时空科技有限公司 | Indoor fireplug information acquisition system based on NB-IOT network |
| CN210922986U (en) * | 2019-10-08 | 2020-07-03 | 北京艾能控制技术有限公司 | Pressure measuring device with abnormal vibration detection function |
| CN210574238U (en) * | 2019-11-12 | 2020-05-19 | 深圳心跳智能科技有限公司 | Intelligent detection module for real-time state of fire hydrant |
| CN211149239U (en) * | 2019-12-06 | 2020-07-31 | 浙江大邦科技有限公司 | NB-IoT smoke sensing control system based on voltage sampling circuit |
| CN112688408A (en) * | 2020-12-28 | 2021-04-20 | 杭州电子科技大学 | Low-power-consumption ultrasonic energy collection circuit and use method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姜福浩等: "基于NB-IOT的智能消火栓检测及管理系统", 电子技术与软件工程, no. 05, pages 23 - 24 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206650446U (en) | A kind of low-power consumption standby circuit of BMS | |
| CN201577225U (en) | Self-check protection device of traffic light | |
| CN107289188B (en) | Meter valve state detection method and system based on multi-signal fusion | |
| CN102393506B (en) | Monitoring system of tripping pulse of breaker | |
| CN104467040A (en) | Vehicle-mounted uninterruptible power supply (UPS) storage battery control and management device | |
| CN102931034B (en) | Rccb | |
| CN113310677A (en) | Fire hydrant monitoring devices | |
| WO2006120602A3 (en) | Battery power management in over-discharge situation | |
| CN204928095U (en) | Protection circuit of intelligence power module | |
| CN208588984U (en) | On/off circuit and unmanned plane for unmanned plane monitoring equipment | |
| CN203720582U (en) | Ultra-low power consumption monitoring circuit used for sensor | |
| CN109243911A (en) | A kind of intelligent auto-power-off device based on electric vehicle sideways | |
| CN202749309U (en) | Residual current circuit breaker | |
| CN204945993U (en) | A kind of watchdog circuit being applicable to Safety output | |
| CN104391225A (en) | Fault detection and communication positioning method for transmission line | |
| CN103021135B (en) | A kind of anti-drowning alarm | |
| CN203350340U (en) | Full-range low power consumption DC voltage detecting circuit | |
| CN204180022U (en) | A kind of radio frequency solid power amplifier protective circuit | |
| CN202647712U (en) | Boiler protection device | |
| CN205986099U (en) | Bluetooth transmission module of tape light | |
| CN201118795Y (en) | Energy-saving TV set with clock function | |
| CN218917583U (en) | Special lithium cell detection device of navigation mark | |
| CN104638758B (en) | Real-time detection and switching circuit for power supply of remote control intelligent gas meter concentrator | |
| CN205118417U (en) | Use detection circuitry that targets in place on intelligent instrument valve | |
| CN203012913U (en) | Anti-drowning alarm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |