CN220525039U - IP68 NB-IoT intelligent water meter - Google Patents

Abstract

The utility model discloses an NB-IoT intelligent water meter of IP68, which comprises a water meter base meter, a shell component and a PCB (printed circuit board) arranged in the shell component, wherein an information interaction module is arranged on the PCB; the information interaction module carries out data interaction with the background master station system to carry out remote meter reading; the information interaction module is communicated with the water meter and is used for information processing through interaction with a user; the information interaction module obtains the water consumption flowing through the water meter through the sampling module and displays the water consumption through an LCD display screen in the man-machine interaction module; the utility model adopts NB-IoT communication technology, can realize the characteristics of wide coverage, low power consumption and high reliability, and can perform long-distance and long-time wireless data transmission; the infrared communication module and the LCD liquid crystal module are adopted in combination, so that the infrared communication module is compatible with the existing infrared communication technology, has low cost, transmission speed and clearer data display, and improves user experience and man-machine interaction effect.

Description

IP68 NB-IoT intelligent water meter

Technical Field

The utility model relates to the technical field of intelligent water meters, in particular to an IP68 waterproof NB-IoT intelligent water meter.

Background

The traditional intelligent water meter generally only has a basic water meter metering function and a data transmission function, and meanwhile, the traditional intelligent water meter generally only supports one communication mode, such as Bluetooth, GPRS and the like, and the communication adaptability and reliability of the traditional intelligent water meter still have room for improvement; meanwhile, the traditional intelligent water meter adopts a mechanical metering mode, the measurement precision and stability are affected by factors such as water pressure, temperature and the like, and the sampling precision and accuracy are not ideal; meanwhile, the traditional intelligent water meter can only realize remote reading and metering of water meter data, and if man-machine interaction can be performed based on the remote reading and metering, the intelligent water meter has more application scenes and use values;

meanwhile, international protection grade International Protection (IP) prescribes the protection grade of the related intelligent water meter; based on the specific technical parameter details specified by the above grades, combined with the improvement points of the traditional intelligent water meter, the application provides an IP68 waterproof NB-IoT intelligent water meter.

Disclosure of Invention

In view of the foregoing, embodiments of the present utility model wish to provide an IP68 waterproof NB-IoT intelligent water meter to solve or mitigate the technical problems in the prior art, at least to provide a beneficial choice;

the technical scheme of the embodiment of the utility model is realized as follows: an IP waterproof NB-IoT intelligent water meter comprises a water meter base meter, a shell component and a PCB (printed circuit board) arranged in the shell component, wherein an information interaction module is arranged on the PCB;

the information interaction module carries out data interaction with the background master station system to carry out remote meter reading;

the information interaction module is communicated with the water meter and is used for information processing through interaction with a user;

the information interaction module obtains the water consumption flowing through the water meter through the sampling module and displays the water consumption through an LCD display screen in the man-machine interaction module.

Wherein in one embodiment: the information interaction module comprises a microprocessor, an NB-IoT communication module, an infrared communication module, an LCD (liquid crystal display) module, a valve driving module and a power module;

the system also comprises a sampling module for sampling data;

the microprocessor is respectively in communication connection with the NB-IoT communication module, the local communication module, the man-machine interaction module, the valve driving module, the power module and the sampling module.

Wherein in one embodiment: the NB-IoT communication module receives and transmits signals through a spring antenna, and the NB-IoT communication module is one or more of BAND frequency BAND, BNAD frequency BAND or full frequency BAND.

Wherein in one embodiment: the local communication module is an infrared communication type.

Wherein in one embodiment: and the PCB is provided with a valve driving module, and the valve driving module is connected with the microprocessor.

Wherein in one embodiment: the man-machine interaction module further comprises a touch key.

Wherein in one embodiment: the PCB is provided with a power module, and the power module comprises a lithium-ion battery and a low-dropout linear voltage regulator connected with the lithium-ion battery.

Wherein in one embodiment: the device also comprises a speed reducer, a battery compartment, a plastic shell, a PCB box, a sampling module box, a speed reducer cover plate, a transparent window, an upper cover and a dust cover;

the PCB is arranged in the PCB box; the plastic shell is respectively connected with the water meter base table, the speed reducer, the battery bin, the PCB box, the upper cover and the dust cover;

the sampling module box is internally provided with the sampling module.

Wherein in one embodiment: the speed reducer is fixed with the base table through a plastic shell screw and used for driving the valve to open and close.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model adopts NB-IoT communication technology, can realize the characteristics of wide coverage, low power consumption and high reliability, and can perform long-distance and long-time wireless data transmission; the infrared communication module and the LCD liquid crystal module are adopted in combination, so that the infrared communication module is compatible with the existing infrared communication technology, has low cost, transmission speed and clearer data display, and improves user experience and man-machine interaction effect.

2. The utility model adopts the valve driving module, can realize automatic control and improves the efficiency of water meter management; meanwhile, a battery power supply mode is adopted, a power supply is not required to be connected, and the problems of complex wiring, difficult installation and the like are avoided.

3. The utility model realizes the international protection level IP68 standard by the cooperation effect of the external related entity structure, can ensure that the water meter works in water for a long time without damage, and simultaneously protects the internal electronic elements and circuits from being influenced by moisture and humidity.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a basic structure of an IP68 waterproof NB-IoT intelligent water meter according to an embodiment of the present utility model;

(2) -decelerator, (3) -battery compartment, (5) -PCB board box, (6) -sampling module box, (7) -decelerator cover plate, (8) -transparent window.

Fig. 2 is a PCB diagram of a key module of a PCB according to an embodiment of the present utility model;

(511) -a microprocessor, (512) -NB-IoT communication module (with antenna), (513) -NB-IoT communication module (with antenna). (514) -a human-machine interaction key and LCD liquid crystal module, (515) -a valve actuation module, (516) -a power module.

FIG. 3 is a view of a transparent window according to an embodiment of the present utility model;

(8) -transparent window, (81) -antenna area, (82) -LCD liquid crystal area, (83) -key area, (84) -infrared area.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. This utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below;

it should be noted that the terms "first," "second," "symmetric," "array," and the like are used merely for distinguishing between description and location descriptions, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of features indicated. Thus, a feature defining "first," "symmetry," or the like, may explicitly or implicitly include one or more such feature; also, where certain features are not limited in number by words such as "two," "three," etc., it should be noted that the feature likewise pertains to the explicit or implicit inclusion of one or more feature quantities;

in the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature; meanwhile, all axial descriptions such as X-axis, Y-axis, Z-axis, one end of X-axis, the other end of Y-axis, or the other end of Z-axis are based on a cartesian coordinate system.

In the present utility model, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly; for example, the connection can be fixed connection, detachable connection or integrated molding; the connection may be mechanical, direct, welded, indirect via an intermediate medium, internal communication between two elements, or interaction between two elements. The specific meaning of the terms described above in the present utility model will be understood by those skilled in the art from the specification and drawings in combination with specific cases.

In the prior art, the traditional intelligent water meter generally only has a basic water meter metering function and a data transmission function, and meanwhile, the traditional intelligent water meter generally only supports one communication mode, such as Bluetooth, GPRS and the like, and the communication adaptability and reliability of the traditional intelligent water meter still have room for improvement; meanwhile, the traditional intelligent water meter adopts a mechanical metering mode, the measurement precision and stability are affected by factors such as water pressure, temperature and the like, and the sampling precision and accuracy are not ideal; meanwhile, the traditional intelligent water meter can only realize remote reading and metering of water meter data, and if man-machine interaction can be performed based on the remote reading and metering, the intelligent water meter has more application scenes and use values; for this reason, referring to fig. 1-3, the present utility model provides a technical solution to solve the above technical problems: an IP68 waterproof NB-IoT intelligent water meter and a waterproof process thereof comprise a water meter base table 1, a shell component and a PCB (printed circuit board) 51 arranged in the shell component, wherein an information interaction module is arranged on the PCB 51;

the information interaction module carries out data interaction with the background master station system to carry out remote meter reading;

the information interaction module is communicated with the water meter and is used for information processing through interaction with a user;

the information interaction module obtains the water consumption flowing through the water meter through the sampling module 61 and displays the water consumption through the LCD display screen in the man-machine interaction module 514.

In the scheme, the information interaction module performs data interaction with the background master station system to realize remote meter reading, and meanwhile, the information interaction module interacts with a user to realize communication and information processing with the water meter. The sampling module 61 can obtain the water consumption flowing through the water meter and display the water consumption through the LCD display screen in the man-machine interaction module 514. Therefore, the intelligent water meter has accurate water meter metering function and intelligent data processing and interaction function, and the management efficiency and the user experience of the water meter are improved.

In some embodiments of the present application, please refer to fig. 1-3 in combination:

the information interaction module comprises a microprocessor 511, an NB-IoT communication module 512, an infrared communication module, an LCD (liquid crystal display) module, a valve driving module 515 and a power module 516; also included is a sampling module 61 for data sampling; the microprocessor 511 is communicatively coupled to an NB-IoT communication module 512, a local communication module 513, a human-computer interaction module 514, a valve driving module 515, a power module 516, and a sampling module 61, respectively.

In this scenario, the information interaction module includes a microprocessor 511, an NB-IoT communication module 512, an infrared communication module, an LCD liquid crystal module, a valve driving module 515, and a power module 516, which are communicatively connected through the microprocessor 511. The NB-IoT communication module 512 is configured to interact with remote data from the background master station system, the infrared communication module is configured to communicate with a user locally, the LCD liquid crystal module is configured to display information such as a water meter usage, the valve driving module 515 is configured to control a water meter switch, and the power module 516 provides power supply. In addition, the intelligent water meter further comprises a sampling module 61 for data sampling of the water flowing through the water meter. The sampling module 61 is in communication with the microprocessor 511 for data transmission. In conclusion, the intelligent water meter has various functional modules, and communication connection among the modules is realized through the microprocessor 511, so that the accurate water meter metering function and the intelligent data processing and interaction function are realized, and the management efficiency and the user experience of the water meter are improved.

Specifically, the information interaction module of the water meter includes a microprocessor 511, an NB-IoT communication module 512, an infrared communication module, an LCD liquid crystal module, a valve driving module 515, and a power module 516. The sampling module 61 is used for data sampling. The microprocessor 511 is communicatively coupled to an NB-IoT communication module 512, a local communication module 513, a human-computer interaction module 514, a valve driving module 515, a power module 516, and a sampling module 61, respectively.

The water meter works on the principle that the sampling module 61 collects the water consumption flowing through the water meter through the sensor and transmits the data to the microprocessor 511 for processing. The microprocessor 511 sends the data to the background master station system via NB-IoT communication module 512 to enable remote meter reading. Meanwhile, when the user needs to inquire the water consumption of the water meter, the user can inquire through the LCD in the man-machine interaction module 514. The valve driving module 515 is used for controlling the water meter to switch on or off, and realizing the function of remotely closing and opening the water source.

When the water meter is used, the water meter needs to be installed on a water pipeline first, and the power module 516 is connected to a power supply. As the water flows through the meter, the sampling module 61 automatically collects water usage data and transmits it to the microprocessor 511 for processing. The user can inquire the water consumption information of the water meter in real time through the LCD liquid crystal module, and can remotely close and open the water source through the valve driving module 515 of the remote control water meter. If remote meter reading is required, the meter will transmit data to the background master station system through the NB-IoT communication module 512. The water meter has accurate water meter metering function and intelligent data processing and interaction function, and can improve the management efficiency and user experience of the water meter.

Specifically, the NB-IoT communication module 512 receives and transmits signals via the spring antenna, and the NB-IoT communication module 512 is one or more of BAND5 BAND, BNAD8 BAND or full BAND.

In this aspect, the NB-IoT communication module 512 is an electronic device for wireless communication that can enable low power consumption, wide coverage, low rate wireless communication. The antenna, the radio frequency chip, the baseband chip and other electronic components are included for converting digital signals into wireless signals and transmitting data in the air.

Preferably, the local communication module 513 is an infrared communication type.

Wherein, the NB-IoT communication module 512 supports BAND5 BAND, BAND8 BAND, or full BAND communication. BAND5 and BAND8 frequency BANDs are communicated in a specific frequency range, and the frequency BANDs are used for low-power-consumption and wide-area coverage internet of things equipment. Full-band communication can be performed in a wider frequency range;

the NB-IoT communication module 512 is a communication module based on NB-IoT technology, and can receive and send signals through a spring antenna to interact with the background master station system. The NB-IoT communication module 512 may support one or more of BAND5 BANDs, BNAD8 BANDs, or full frequencies.

Illustratively, the using or driving steps:

s1, initializing: before using the NB-IoT communication module 512, initialization is required, including configuring communication parameters, establishing communication connections, etc.

S2, sending data: the collected water meter data can be sent to the background master station system through the NB-IoT communication module 512, so that the remote meter reading function is realized.

S3, receiving data: the NB-IoT communication module 512 can also receive control instructions from the background master station system, including opening and closing valves, modifying water meter parameters, and the like.

S4, processing exception: in the use process, if the NB-IoT communication module 512 is abnormal, the NB-IoT communication module needs to process in time to ensure the normal operation of the communication.

In some embodiments of the present application, please refer to fig. 1-3 in combination: the PCB 51 is provided with a valve driving module 515, and the valve driving module 515 is connected with the microprocessor 511. The man-machine interaction module 514 also includes touch keys; the PCB 51 is provided with a power module 516, and the power module 516 comprises a lithium-ion battery and a low-dropout linear voltage regulator connected with the lithium-ion battery.

In this scheme, the valve driving module 515 and the power module 516 are both connected to the PCB board 51, and the driving of the valve and the supply of power are realized through the control of the microprocessor 511. The touch keys are used as part of the human-machine interaction module 514 for user interaction with the meter. The power module 516 is powered by a lithium battery, and stably outputs voltage through a low-dropout linear voltage regulator so as to ensure the normal operation of the water meter.

Illustratively, the use/driving steps are:

s1, a lithium battery is mounted in the power module 516 and connected to the PCB board 51.

S2, the valve driving module 515 is connected to the PCB 51 and connected with the microprocessor 511.

S3, connect NB-IoT communication module 512, infrared communication module, man-machine interaction module 514, sampling module 61 and power module 516 to microprocessor 511.

S4, starting water flow, starting sampling by the sampling module 61, and transmitting the acquired data to an LCD display screen of the man-machine interaction module 514 through the microprocessor 511.

The user can interact with the water meter by touching the keys, such as querying the water meter dosage, adjusting the valve, etc.

The NB-IoT communication module 512 transmits and receives signals through the spring antenna, and transmits data to the background master station system, so as to realize remote meter reading and data interaction.

It should be noted that in this embodiment, during the use process, the sufficient electric quantity of the lithium battery is ensured, so as to ensure the normal operation of the water meter. The valve actuation module 515 needs to be connected to the microprocessor 511 to ensure accurate and reliable actuation of the valve. The sampling module 61 needs to be installed inside the water meter to ensure accurate collection of water usage. The band of the NB-IoT communication module 512 needs to be selected according to practical situations to ensure the communication quality.

Preferably, the valve driving module 515 is a direct current motor: a dc motor is a common driving element that can provide sufficient driving force and is relatively low in cost.

Preferably, the valve driving module 515 is a stepper motor: the stepping motor can provide high-precision driving and can control the opening and closing angles of the valve.

Preferably, the valve driving module 515 is a servo motor: the servo motor can provide high-precision and high-speed driving, and is suitable for occasions needing quick response. However, the servo motor has high cost and requires a complex control circuit and driving mode.

Preferably, the valve actuation module 515 is a solenoid valve: the common solenoid valve can control the opening and closing of the valve through electromagnetic force.

Preferably, the valve actuation module 515 is an intelligent solenoid valve: the intelligent electromagnetic valve can control the magnitude and the direction of electromagnetic force through the microprocessor, so that more accurate valve control is realized.

In the scheme, a PCB 51 is arranged inside a PCB box; the plastic shell 4 is respectively connected with the water meter base table 1, the speed reducer 2, the battery compartment 3, the PCB box 5, the upper cover 9 and the dust cover 10; a sampling module 61 is provided in the sampling module box 6. The speed reducer 2 is fixed with the base meter through a plastic shell screw and is used for driving the valve switch.

Wherein, the base table 1 is a valve-controlled copper shell or a 304 stainless steel shell of a spray type; meanwhile, the battery compartment 3 can accommodate lithium thionyl chloride ER26500 or ER34615 batteries, and glue can be filled into the battery compartment according to the service environment of a customer to improve the waterproof performance of the batteries; the dust cap 10 protects the meter face from dust entering the shield reading.

Specifically, the man-machine interaction module 514 further includes a touch key, which allows a user to interact with the water meter through the touch key. The power module 516 includes a lithium-ion battery and a low dropout linear regulator, which provides a stable and reliable power supply for the water meter. The PCB box 5 is located inside the plastic case 4, and includes a PCB 51. The plastic shell 4 is connected with the water meter base table 1, the speed reducer 2, the battery compartment 3, the PCB box 5, the upper cover 9 and the dust cover 10. A sampling module 61 is arranged in the sampling module box 6 and is used for data sampling. The speed reducer 2 is fixed with the base meter through a plastic shell screw and is used for driving the valve to be opened and closed. The waterproof performance of the cover plate of the speed reducer is further improved through secondary pouring. Table 1 is an alternative spray valve copper or 304 stainless steel shell for protecting the internal structure of the water meter. The battery compartment 3 can accommodate lithium thionyl chloride ER26500 or ER34615 batteries, and can be filled with glue according to the service environment of customers, so that the waterproof performance of the batteries is improved. The dust cover 10 can protect the dial of the water meter, prevent dust from entering and shielding the reading, and improve the reliability and the service life of the water meter. When in use, a user can interact with the man-machine interaction module 514 by touching the keys, thereby realizing the functions of data display and operation. Meanwhile, the sampling module 61 can accurately collect the water consumption flowing in the water meter, so that the metering function of the water meter is realized. The valve drive module 515 can control the valve switch of the water meter, thereby realizing the control and metering of water. When in use, a user only needs to install the water meter and ensure that enough electric quantity exists in the battery compartment, and the operation and data display can be performed through the man-machine interaction module 514.

Implementation of the international protection level IP68 standard:

the method is characterized by comprising the following steps of:

the outer shell of the base table 1 is a spray valve control copper shell or a 304 stainless steel shell;

the speed reducer 2 is fixed with the base table through a plastic shell screw to drive a valve switch, and waterproof glue is secondarily poured and sealed through a cover plate of the speed reducer;

the storage battery accommodated in the battery bin 3 is lithium thionyl chloride ER26500 or ER34615 battery, and waterproof glue is poured into the battery bin 3;

the transparent window 8 wraps the touch keys, LCD display, local communication module 513, and antenna of NB-IoT communication module 512 and then fills waterproof glue;

wherein, the waterproof glue is preferably epoxy resin AB glue filling glue, and the glue quantity submerges the device by at least 3mm.

(1) Design of plastic case 4, upper cover 9 and dust cover 10: the connection of the plastic shell 4, the upper cover 9 and the dust cover 10 can effectively prevent dust and moisture from entering the water meter, and short circuit or damage is avoided. These components are all IP68 rated to ensure that the meter will operate in water for long periods of time without damage.

(2) Waterproof design of the PCB box 5 and the sampling module box 6: both the PCB box 5 and the sampling module box 6 are waterproof designs, which can protect the internal electronic components and circuits from moisture and humidity.

(3) Design of valve actuation module 515: the valve drive module 515 is attached to the PCB board and by actuation of the module, the valve can be accurately opened or closed, thereby ensuring accurate metering of the meter.

(4) Design of the power module 516: the power module 516 includes a lithium-ion battery and a low dropout linear regulator, which are both waterproof and are placed within the PCB board from moisture ingress. Meanwhile, the design of the power supply module can ensure long-time work of the water meter.

The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments may not be described, however, they should be considered as the scope of the present description as long as there is no contradiction between the combinations of the technical features.

The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. An NB-IoT intelligent water meter of IP68, including water meter base table (1), housing assembly and install in its inside PCB board (51), its characterized in that: an information interaction module is arranged on the PCB (51);

the information interaction module carries out data interaction with the background master station system to carry out remote meter reading;

the information interaction module is communicated with the water meter and is used for information processing through interaction with a user;

the information interaction module obtains the water consumption flowing through the water meter through the sampling module (61) and displays the water consumption through an LCD display screen in the man-machine interaction module (514).

2. The NB-IoT smart water meter of IP68 of claim 1, wherein: the information interaction module comprises a microprocessor (511), an NB-IoT communication module (512), an infrared communication module, an LCD (liquid crystal display) module, a valve driving module (515) and a power supply module (516);

also comprises a sampling module (61) for data sampling;

the microprocessor (511) is respectively in communication connection with the NB-IoT communication module (512), the local communication module (513), the man-machine interaction module (514), the valve driving module (515), the power module (516) and the sampling module (61).

3. The NB-IoT smart water meter of IP68 of claim 2, wherein: the NB-IoT communication module (512) receives and transmits signals through a spring antenna, and the NB-IoT communication module (512) is one or more of BAND5 frequency BAND, BNAD8 frequency BAND or full frequency BAND.

4. The NB-IoT smart water meter of IP68 of claim 2, wherein: the local communication module (513) is an infrared communication type.

5. The NB-IoT smart water meter of IP68 of any of claims 2-4, wherein: the PCB (51) is provided with a valve driving module (515), and the valve driving module (515) is connected with the microprocessor (511).

6. The NB-IoT smart water meter of IP68 of claim 5, wherein: the human-machine interaction module (514) also includes touch keys.

7. The NB-IoT smart water meter of IP68 of claim 5, wherein: the PCB (51) is provided with a power module (516), and the power module (516) comprises a lithium-ion battery and a low-dropout linear voltage regulator connected with the lithium-ion battery.

8. The NB-IoT smart water meter of IP68 of claim 5, wherein: the device also comprises a speed reducer (2), a battery compartment (3), a plastic shell (4), a PCB box (5), a sampling module box (6), a speed reducer cover plate (7), a transparent window (8), an upper cover (9) and a dust cover (10);

the PCB (51) is arranged in the PCB box; the plastic shell (4) is respectively connected with the water meter base table (1), the speed reducer (2), the battery compartment (3), the PCB box (5), the upper cover (9) and the dust cover (10);

the sampling module (61) is arranged in the sampling module box (6).

9. The NB-IoT smart water meter of IP68 of claim 8, wherein: the speed reducer (2) is fixed with the base table through a plastic shell screw and used for driving the valve to open and close.