CN210574238U

CN210574238U - Intelligent detection module for real-time state of fire hydrant

Info

Publication number: CN210574238U
Application number: CN201921940896.6U
Authority: CN
Inventors: 唐文斌; 王官义; 王洋; 刘文怀; 郑刚; 刘振国
Original assignee: Shenzhen Thingtill Intelligent Technology Co ltd
Current assignee: Shenzhen Thingtill Intelligent Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-05-19
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a fire hydrant real-time status's intellectual detection system module, including host computer, hardware circuit, temperature sensor, water pressure sensor, level sensor, battery, antenna and button LED, the hardware circuit sets up in the host computer, the hardware circuit includes MCU control module, power control module, NB-IoT module, indicating module and detecting module, and detecting module includes water pressure detecting module, emptys detecting module, temperature detecting module and electric quantity detecting module, and indicating module includes button module and LED display module. The utility model has the advantages that: the water pressure and the water temperature of the fire hydrant are detected in real time, the fire hydrant abnormity early warning, the battery power and the valve switch are detected, and the water pressure and the water temperature are reported to a background management center, so that a user can conveniently monitor the fire hydrant remotely and manage information, the management cost is greatly reduced, hardware keys and indicator lamps are added, the integrity of equipment functions is enhanced, and the use is convenient for the user.

Description

Intelligent detection module for real-time state of fire hydrant

Technical Field

The utility model relates to an intelligence fire hydrant technical field specifically is a fire hydrant real-time status's intellectual detection system module.

Background

The fire hydrant is one of the subsidiary facilities of the urban water supply network, is also an important device for controlling fire, mainly provides a fire truck to take water from the municipal water supply network or the outdoor fire-fighting water supply network to put out a fire, has the functions of isolating combustion-supporting objects, eliminating a fire source, directly influencing the life and property safety of people and playing a role, and is one of the important fire-fighting facilities for putting out the fire.

However, in practical application, the fire hydrant is often damaged, water is taken illegally, fittings are stolen, and the fire cannot be normally taken and extinguished in case of fire due to the fact that the fire is not repaired for a long time; secondly, due to the characteristics of wide distribution and large quantity of fire hydrants, the fire hydrants cannot be found to fetch water nearby in time when a fire occurs, so that the management cost is high and the efficiency is low; moreover, when the fire control is abnormal, the alarm signal can not be obtained in real time.

Therefore, with the development of the information era, the demand on intelligent information management of the fire hydrant is greater, the demand on real-time state detection of the fire hydrant is also higher, the traditional fire hydrant cannot meet the demand of people, and the intelligent fire hydrant capable of detecting the state in real time is produced at the right moment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire hydrant real-time status's intellectual detection system module to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an intelligent detection module of fire hydrant real-time status, includes host computer, hardware circuit, water temperature sensor, water pressure sensor, level sensor, battery, antenna and button LED, the hardware circuit sets up in the host computer, the hardware circuit includes MCU control module, power control module, NB-IoT module, indicating module and detection module, detection module includes water pressure detection module, emptys detection module, water temperature detection module and electric quantity detection module, indicating module includes button module and LED display module, water temperature sensor water pressure sensor with level sensor is the input of hardware circuit's electrical connection end, and all set up in the fire hydrant cavity, the antenna with NB-IoT module is connected, button LED sets up the host computer shell wall.

Preferably, the MCU control module is a single chip microcomputer and is in serial port communication with the NB-IoT module.

Preferably, the battery is a rechargeable lithium battery.

Preferably, the detection module and the water temperature sensor are used for collecting the temperature of water in the fire hydrant and transmitting a water temperature signal to the MCU micro control module through the I/O port.

Preferably, the detection module and the water pressure sensor are used for collecting the pressure of water in the fire hydrant and transmitting a water pressure signal to the MCU micro control module through the I/O port.

Preferably, the detection module and the acceleration sensor are used for detecting whether the fire hydrant body is toppled or damaged or not and transmitting signals to the MCU micro control module through the I/O port.

Preferably, the electric quantity detection is used for collecting the electric quantity of the lithium battery, transmitting a signal to the MCU module, and converting the electric quantity into percentage electric quantity through an electric quantity curve.

Preferably, the power control module comprises 3.3V and 5V power chips, the output end of the 3.3V power chip is respectively connected with the MCU micro control chip, the water temperature sensor, the acceleration sensor, the indicating circuit and the NB-IoT power supply end, and the output end of the 5V power chip is connected with the water pressure sensor power supply end.

Preferably, the NB-IoT module includes an NB-IoT chip, a SIM card slot, and a high-gain patch antenna, and communicates with the MCU microcontroller through a serial port.

Preferably, the indication module comprises an LED display module and a key reset module, the LED display module is used for displaying the working state of the module, and the key reset module is used for resetting the dumping state and triggering a registration instruction with a key after solving the problem of abnormal dumping.

Advantageous effects

1. The utility model discloses a hardware design has realized that water pressure, the temperature to the fire hydrant in real time detect, the detection of fire hydrant unusual early warning, battery power, valve switch detect to report to backstage management center in real time, made things convenient for user to the remote monitoring and the information-based management of fire hydrant, greatly reduced manage into

The SIM card has a unique identity and a unique network card number, so that the fire hydrant is convenient to position, water can be accurately taken nearby when a fire disaster occurs, and the utilization rate of the fire hydrant is greatly improved.

3. Hardware keys and an indicator light are added, the keys can enable the equipment to upload data again and enable a user to complete a registration instruction, the indicator light can observe whether the host works normally or not in real time on site, maintenance efficiency is improved, the integrity of equipment functions is enhanced, and meanwhile the use of the user is facilitated.

Drawings

Fig. 1 is a schematic circuit block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

Fig. 3 is a circuit three-dimensional assembly diagram of the present invention.

Reference numerals

1-a main machine box body, 2-a nylon waterproof interface, 3-a circuit main board, 4-a waterproof ring, 5-a main machine upper cover,

6-RGB and LED buttons, 7-circuit board screw holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1-3, an intelligent detection module for real-time status of a fire hydrant comprises a host, a hardware circuit, a water temperature sensor, a water pressure sensor, a liquid level sensor, a battery, an antenna and a key LED, wherein the hardware circuit is arranged in the host, the hardware circuit comprises an MCU control module, a power control module, an NB-IoT module, an indication module and a detection module, the detection module comprises a water pressure detection module, a dumping detection module, a water temperature detection module and an electric quantity detection module, the indication module comprises a key module and an LED display module, the water temperature sensor, the water pressure sensor and the liquid level sensor are input ends of electrical connection ends of the hardware circuit and are all arranged in a cavity of the fire hydrant, the antenna is connected with the NB-IoT module, and the key LED is arranged on the wall of the.

Preferably, the battery is a rechargeable lithium battery.

Preferably, the NB-IoT module comprises an NB-IoT chip, a SIM card slot and a high-gain patch antenna, and is communicated with the MCU through a serial port.

Preferably, the indicating module comprises an LED display module and a key reset module, the LED display module is used for displaying the working state of the module, and the key reset module is used for resetting the toppling state and triggering a registration instruction with a key after solving the problem of toppling abnormality.

The whole schematic diagram is mainly divided into 5 modules: the device comprises a power control module, an MCU processing module, an NB-IOT communication module, a detection module and an indication module.

The power supply control module supplies power to the MCU and other chips and sensors as required through voltage boosting or voltage reduction; the power module of the whole host is divided into three parts: v0 (DCDC power supply), V1(LDO power supply), V2 (DCDC power supply). The further output voltage V0 circuit mainly adopts a BUCK circuit, and the 4.2V battery voltage is reduced to 3.3V in a DC-DC synchronous voltage reduction mode to be used as the power supply input end of the NB-IoT module and the temperature sensor. By the formula: v0=0.6V (1 + R2/R3) =3.3V, and the resistances of the resistors R2 and R3 are adjusted to achieve the module output voltage of 3.3V, and meanwhile, the enable pin 1 of the buck chip U7 is controlled to achieve the on/off of the 3.3V power supply. The further output voltage V1 circuit mainly adopts a Boost circuit, and the 4.2V lithium battery voltage is boosted to 5V by a DC-DC synchronous boosting mode to supply power to the pressure sensor. By the formula: v2= (R10+ R13)/R13 × 1.17V =5V, and the resistances of the resistors R10 and R13 are adjusted to achieve the module output voltage of 5V, and meanwhile, the enable pin 3 of the synchronous boost chip U3 is controlled to achieve on and off of the 5V power supply. The further output voltage V1 circuit adopts the topological structure circuit that steps down, is 3.3V voltage with 4.2V's lithium cell voltage step-down, supplies power for MCU control module, acceleration sensor, level sensor and indicating module.

The MCU control module is mainly used for receiving and processing data of each sensor and is in serial port communication with the NB-IoT module, and the MCU control module mainly comprises a reset circuit, a crystal oscillator circuit, an MCU chip and a burning and debugging program interface. The RESET circuit adopts a resistor-capacitor RESET circuit, the resistor-capacitor RESET is a power-on moment, the capacitor C17 is equivalently conducted, the potential of a RESET point between the resistor R18 and the capacitor C17 is equivalent to ground, the MCU is RESET, then the capacitor C17 is charged, the point position of the RESET point is close to the power supply voltage, the MCU normally works after the RESET is released, and the RESET extension time is t = R18C 17=1 s. The crystal oscillator circuit is a high-speed external clock circuit and a low-speed external clock circuit, and two ends of a high-speed external clock Y1 are respectively connected with capacitors C20 and C21 in series to form an oscillating circuit; the two ends of the low-speed external clock Y2 are respectively connected with capacitors C23 and C24 in series to form an oscillating circuit.

The NB-IoT communication module is mainly used for processing and sending data, ensuring real-time communication with a background management center and reporting information, and mainly comprises an NB-IoT chip, an SIM card, a level conversion chip and an antenna. The NB-IoT chip is a wireless communication module with high performance, wide working temperature range and multiple frequency bands, can be used for transmitting AT commands and data, and uploads the data acquired by the sensor to a background management center, thereby realizing the real-time transmission of information. The level conversion chip converts 3.3V voltage into 1.8V voltage, supplies power to the main serial port, the auxiliary serial port, the debugging serial port and the SIM card of the NB-IoT chip, and ensures normal communication between the NB-IoT chip and the MCU. The SIM card is an internet of things card, the card is inserted into the clamping groove, the network card number of the card can be read, the SIM card is the only identifier of the host, the fire hydrant is convenient to position and bind, and the utilization rate and the management of the fire hydrant are improved.

The detection module is mainly used for detecting the water pressure, the water temperature, the valve, the dumping and the electric quantity in the fire hydrant and transmitting signals to the MCU processor through the serial port to upload data. The water pressure detection is to detect the water pressure in the bolt through a pressure sensor probe and upload the data to a background management center, and if the water pressure monitored by the pressure sensor is higher than a set water pressure value, a background sends out an alarm signal to remind a worker to go to the inspection. The water temperature detection is to detect the temperature in the bolt through a temperature sensor probe and upload the data to a background management center, if the water temperature monitored by the temperature sensor is higher than a set temperature value, if the water temperature is high in artificial high-temperature combustion or low-temperature weather, the background sends out an alarm signal to remind a worker to go to maintenance and inspection. The valve detection adopts a liquid level sensor, when the valve is opened, water in the plug rises to submerge the liquid level sensor, the liquid level sensor sends a signal to an MCU (microprogrammed control unit), and the MCU sends the signal of opening the valve to a background management center to carry out an alarm signal of opening the valve, so that the purpose of real-time monitoring is achieved. The toppling detection is to detect the toppling degree of the fire hydrant through the acceleration sensor chip, upload toppling data to the background management center, send an alarm signal when someone maliciously destroys or knocks the fire hydrant, and remind a worker to go to maintenance. The electric quantity detection adopts the resistor R1 and the resistor R5 which are connected in series for voltage division, the electric quantity of the lithium battery is collected through the single chip microcomputer AD, the digital quantity of the lithium battery is converted into corresponding percentage and reported to the background management center in real time, and if the electric quantity is lower than a set value, the background sends out an alarm signal to remind that the lithium battery is replaced.

The indicating module is mainly used for improving the integrity of the whole circuit by adding key resetting, key binding equipment and RGB-LED lamp indicating working states. Further, a metal self-reset key is adopted and provided with an RGB-LED lamp, and after the key is pressed down, an instruction is sent to the MCU microprocessor; and after receiving the instruction, the MCU microprocessor sends the instruction, so that the RGB _ LED drive execution lamp is turned on, meanwhile, the MCU acquires the equipment identity code MAC, and the mobile terminal finishes the binding of the equipment. And when the data is uploaded, the RGB-LED lamp is on, and the lamp is turned off after the data is successfully sent. Furthermore, if the fire hydrant equipment breaks down and the fault is repaired on site, whether the host works normally or not can be detected through key resetting, and the usability and the flexibility of the equipment are improved.

In addition, the circuit board adopts a two-layer layout wiring mode in consideration of the structure and the cost, the size of the circuit board is 3.1cm by 5.7cm, and the thickness of the circuit board is 1.6 mm. Furthermore, on the manual layout of the devices, the devices to be plugged, such as the input end of the sensor, the input end of the battery and the burning debugging end, are placed on the upper side, the lower side, the left side and the right side of the circuit board, so that the wiring use is convenient; the filter capacitors such as C8 and C25 are arranged near the chip needing power supply filtering, so as to play a role in filtering and ensure the stability of the input and output power supplies; meanwhile, an impedance circuit for outputting antenna signals adopts an L-shaped layout mode, so that external interference is reduced. On the other hand, on manual wiring of the device, interactive wiring is carried out on the bottom layer and the top layer, the signal wire adopts 8mil, the power wire adopts 30mil, the distance between the wire and the wire is 12mil, and the through hole adopts the size of 0.3mm in inner diameter and 0.5mm in outer diameter, so that the current output of the circuit board load is ensured to form a loop; the crystal oscillators Y1 and Y2 are wired in a covering mode, so that the stability of the crystal oscillators is improved; and the antenna signal line is processed in a packet ground manner, so that the interference of other factors to the antenna signal is avoided.

Example 2

For better realization the utility model discloses, according to the circuit board that has designed, design out a collection circuit board, sensor host computer as an organic whole. As shown in fig. 3, the nylon waterproof interface 2 and the RGB-LED button 6 are disposed on two sides of the main body case 1, the circuit board 3 is disposed in the main body case 1, the wiring harnesses of the temperature sensor, the water pressure sensor, the liquid level sensor and the lithium battery all go through the nylon interface 2 to the inside of the fire hydrant, and the waterproof ring 4 is disposed between the main body case 1 and the main body upper cover 5.

Specifically, the flow of circuit board assembly is as follows: firstly, an Internet of things card is arranged in a clamping groove on a circuit main board, the circuit main board 3 is obliquely placed into a main machine box body 1, 3 screw holes 7 on the circuit main board 3 are screwed with screws, then a waterproof rubber ring and a gasket (IP 67 grade) of an antenna are sleeved on the circuit main board, and an antenna nut is screwed, so that the nut extrudes a waterproof gasket of the antenna; then the RGB-LED button 6 is arranged on the host box body 1, a self-contained waterproof rubber ring (IP 67 level) is sleeved on the RGB-LED button, the control line is oppositely inserted into a corresponding interface of the circuit main board 3, and a nut is screwed; then the nylon interface 2 is arranged on the outer side of the host box body 1, the wiring harnesses of the temperature sensor, the water pressure sensor, the liquid level sensor and the lithium battery are correspondingly inserted into the corresponding interfaces of the circuit main board 3, the wiring harnesses penetrate through the nylon waterproof interface 2, and the waterproof interfaces are screwed; finally, a waterproof ring 4 (IP 67 grade) is arranged, a host upper cover 5 is covered, 4 screws of the upper cover are screwed, and the waterproof ring is extruded by the upper cover and tightly propped in a groove of the host box body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the protection scope of the present invention.

Claims

1. The utility model provides a fire hydrant real-time status's intellectual detection system module, includes host computer, hardware circuit, water temperature sensor, water pressure sensor, level sensor, battery, antenna and button LED, its characterized in that: the hardware circuit is arranged in the host computer and comprises an MCU (microprogrammed control Unit) control module, a power supply control module, an NB-IoT (network B-IoT) module, an indicating module and a detection module, wherein the detection module comprises a water pressure detection module, a dumping detection module, a water temperature detection module and an electric quantity detection module, the indicating module comprises a key module and an LED (light-emitting diode) display module, the water temperature sensor, the water pressure sensor and the liquid level sensor are input ends of electrical connection ends of the hardware circuit and are all arranged in a fire hydrant cavity, the antenna is connected with the NB-IoT module, and the key LED is arranged on the wall of the host computer shell.

2. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the MCU control module is a single chip microcomputer and is in serial port communication with the NB-IoT module.

3. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the battery is a rechargeable lithium battery.

4. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the detection module and the water temperature sensor are used for collecting the temperature of water in the fire hydrant and transmitting a water temperature signal to the MCU micro control module through the I/O port.

5. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the detection module and the water pressure sensor are used for collecting the pressure of water in the fire hydrant and transmitting a water pressure signal to the MCU micro control module through the I/O port.

6. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the detection module and the acceleration sensor are used for detecting whether the fire hydrant body is toppled or damaged or not and transmitting signals to the MCU micro control module through the I/O port.

7. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the electric quantity detection is used for collecting the electric quantity of the lithium battery, transmitting a signal to the MCU module, and converting the electric quantity into percentage through an electric quantity curve.

8. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the power control module comprises 3.3V and 5V power chips, the output end of the 3.3V power chip is respectively connected with the MCU micro control chip, the water temperature sensor, the acceleration sensor, the indicating circuit and the NB-IoT power end, and the output end of the 5V power chip is connected with the water pressure sensor power end.

9. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the NB-IoT module comprises an NB-IoT chip, an SIM card slot and a high-gain patch antenna, and is communicated with the MCU through a serial port.

10. The intelligent detection module for the real-time status of a fire hydrant according to claim 1, wherein: the indicating module comprises an LED display module and a key resetting module, the LED display module is used for displaying the working state of the module, and the key resetting module is used for resetting the toppling state and triggering a registration instruction through a key after solving the problem of toppling abnormity.