CN207833686U - Monitoring water supply wireless acquisition terminal and monitoring water supply wireless acquisition system - Google Patents

Abstract

The utility model discloses a kind of monitoring water supply wireless acquisition terminal and monitoring water supply wireless acquisition system, the monitoring water supply wireless acquisition terminal of the utility model includes：Processor, water supply flow sensor, pressure of supply water sensor and NB IOT modules, the water supply flow sensor, the pressure of supply water sensor and the NB IOT modules are connected with the processor respectively, monitoring water supply wireless acquisition terminal in the utility model no longer uses GPRS technologies, but use NB IOT technologies, due to the covering gain of the high 20db of NB IOT signal ratio GPRS signals, signal penetration power is strong, and power consumption is also below GPRS technologies, when in water supply network being used in following table well, it is strong with signal penetration power, low in energy consumption and lower-cost advantage.

Description

Water supply monitoring wireless collection terminal and water supply monitoring wireless collection system

technical field

The utility model relates to the field of water supply monitoring, in particular to a wireless collection terminal for water supply monitoring and a wireless collection system for water supply monitoring.

Background technique

With the rapid development of social economy, the role of water supply network in people's life and production has become increasingly prominent. At present, the wireless collection terminals of the water supply pipe network system basically use General Packet Radio Service (GPRS) technology. Most of the wireless acquisition terminals are arranged in underground surface wells, and the metal manhole cover will shield the GPRS signal to a certain extent, which will cause the GPRS signal in the surface well to be weak, and there is no mains power supply in the surface well, so battery power is required. The wireless acquisition terminal function using GPRS technology The power consumption is high, the battery capacity is large, and it is not easy to integrate, and the cost is high. Therefore, there is an urgent need for a water supply monitoring wireless collection terminal that can quickly and stably collect water supply pipe network signals with low power consumption, so as to meet the application of data collection in surface wells.

The above content is only used to assist in understanding the technical solution of the present utility model, and does not mean to admit that the above content is the prior art.

Utility model content

The purpose of this utility model is to provide a wireless collection terminal for water supply monitoring, through which the NB-IOT module can quickly collect and temperature feedback water supply pipe network data in underground surface wells without mains electricity, and solve the problem of using GPRS technology in the prior art. The power consumption and cost of the collection terminal are high, and the water supply data cannot be collected accurately.

In order to achieve the above purpose, the utility model provides a wireless collection terminal for water supply monitoring:

The wireless collection terminal for water supply monitoring includes: a processor, a water supply flow sensor, a water supply pressure sensor and an NB-IOT module, and the water supply flow sensor, the water supply pressure sensor and the NB-IOT module are respectively connected to the processor ;

The water supply flow sensor is used to collect water supply flow information, and send the collected water supply flow information to the processor;

The water supply pressure sensor is used to collect water supply pressure information, and send the collected water supply pressure information to the processor;

The processor is configured to wirelessly transmit the water supply flow information and water supply pressure information to a server through the NB-IOT module.

Preferably, both the water supply flow sensor and the water supply pressure sensor are connected to the processor through a protocol switching device.

Preferably, the NB-IOT module is connected to the UART interface of the processor.

Preferably, the wireless collection terminal for water supply monitoring further includes: a power supply connected to the POWER interface of the processor.

Preferably, the power supply is a lithium battery, and the lithium battery is connected to the A/D interface and the POWER interface of the processor.

Preferably, the wireless collection terminal for water supply monitoring further includes: a memory connected to the SPI interface of the processor;

The memory is used for storing the water supply flow information and the water supply pressure information.

Preferably, the wireless collection terminal for water supply monitoring further includes: a real-time clock connected to the I2C interface of the processor;

The real-time clock is used to remind the processor regularly.

Preferably, the wireless collection terminal for water supply monitoring further includes: a magnetic switch reed switch connected to the WKUP interface of the processor.

Preferably, the processor is an MCU processor.

In order to achieve the above purpose, the utility model also provides a wireless collection system for water supply monitoring:

The wireless collection system for water supply monitoring includes a NB-IOT base station, a server and at least one wireless collection terminal for water supply monitoring as described above;

The NB-IOT base station is wirelessly connected to the water supply monitoring wireless collection terminal through the NB-IOT module;

The NB-IOT base station is wirelessly connected to the server;

The NB-IOT base station collects the water supply data collected by the water supply monitoring wireless collection terminal, and transmits the water supply data to the server.

The wireless collection terminal for water supply monitoring of the utility model includes: a processor, a water supply flow sensor, a water supply pressure sensor and an NB-IOT module, and the water supply flow sensor, the water supply pressure sensor and the NB-IOT module are respectively connected with the processing The water supply flow sensor collects water supply flow information, and sends the collected water supply flow information to the processor, and the water supply pressure sensor collects water supply pressure information, and sends the collected water supply pressure information to the processor , the processor wirelessly transmits the water supply flow information and water supply pressure information to the server through the NB-IOT module, and the wireless collection terminal for water supply monitoring in the utility model no longer uses GPRS technology, but uses NB-IOT technology , because the coverage gain of NB-IOT signal is 20db higher than that of GPRS signal, the signal penetration is strong, and the power consumption is also lower than that of GPRS technology. When used in the underground surface well of the water supply network, it has strong signal penetration, low power consumption and Advantages of lower cost.

Description of drawings

Fig. 1 is a schematic diagram of the hardware structure of the utility model water supply monitoring wireless collection terminal;

Fig. 2 is a schematic diagram of the hardware structure of the wireless collection system for water supply monitoring of the present invention.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In this embodiment, a wireless collection terminal for water supply monitoring includes: a processor 10, a water supply flow sensor 20, a water supply pressure sensor 30, and a cellular-based Narrow Band Internet of Things (NB-IOT ) module 40, the water supply flow sensor 20, the water supply pressure sensor 30 and the NB-IOT module 40 are respectively connected to the processor 10;

The water supply flow sensor 20 is used to collect water supply flow information, and send the collected water supply flow information to the processor 10;

The water supply pressure sensor 30 is used to collect water supply pressure information, and send the collected water supply pressure information to the processor 10;

The processor 10 is configured to transmit the water supply flow information and water supply pressure information to the server 02 via the NB-IOT module wirelessly 40 .

In this embodiment, the water supply flow information is collected by the water supply flow sensor 20 and the water supply pressure information is collected by the water supply pressure sensor 30, and the water supply flow information and the water supply pressure information are sent to the processor 10, so The processor 10 transmits to the server 02 through the wireless 40 of the NB-IOT module, which can realize the rapid collection and feedback of water supply data information, and because the NB-IOT module 40 is used for wireless transmission of water supply data, compared with the existing Some general packet radio service (General Packet Radio Service, GPRS) technology wireless collection terminals, NB-IOT coverage gain is 20db higher than GPRS, the amplification factor is stronger, the signal penetration is stronger, and can be applied in the interior of underground surface wells, Indirectly reduces the weakening of the signal by the metal manhole cover, and the NB-IOT module 40 integrated in the terminal has low power consumption, the idle current is 2mA, the power consumption in the power-saving mode is 5uA, the receiving current is 5mA, and the transmitting current is 100mA. If a 4.2V/5AH battery is used to collect data every 5 minutes, the battery can be used for about 5 years if the battery is reported uniformly for 1 hour. However, the battery life of the existing collection terminals that use GPRS calculations is basically less than one year. Therefore, based on the above The wireless collection terminal for water supply monitoring of the NB-IOT module 40 has low power consumption, which can prolong the service life of the battery of the wireless collection terminal, and is very suitable for collecting water supply data in surface wells.

In order to transmit the water supply flow information and the water supply pressure information more quickly and stably, further, the water supply flow sensor 20 and the water supply pressure sensor 30 are both connected to the processor through a protocol switching device 50 . The protocol conversion device 50 can convert the information of different transmission protocols, so as to realize fast and stable transmission of the water supply flow information and the water supply pressure information.

In order to timely feed back the water supply flow information and the water supply pressure information to the server 02, further, the NB-IOT module 40 is connected to the UART interface of the processor 10; The UATT (Universal Asynchronous Receiver/Transmitter, UATT) interface can achieve a stable connection with the NB-IOT module 40, so that the NB-IOT module 40 can use the characteristics of strong penetration under the surface to stably and quickly transfer the NB-IOT module 40. The water supply flow information and the water supply pressure information are wirelessly transmitted to the server 02.

In order to provide power for the processor 10, the water supply flow sensor 20, the water supply pressure sensor 30 and the NB-IOT module 40, further, the water supply monitoring wireless collection terminal further includes: a power supply 60, the power supply 60 is connected to the POWER interface of the processor 10 . The power supply 60 can provide a stable current for the processor 10, the water supply flow sensor 20, the water supply pressure sensor 30 and the NB-IOT module 40, and can be applied to underground meters without mains power. Maintaining the collection of water supply data of the water supply monitoring wireless collection terminal.

In order to ensure the safety of the power supply, further, the power supply 60 is a lithium battery, and the lithium battery is connected to the A/D interface and the POWER interface of the processor 10 . The lithium battery can have its own protection board; the processor 10 collects the voltage information of the lithium battery through the A/D interface. The power supply 60 is a lithium battery that can ensure the safety of the power supply, and can adapt to underground operations through its own protective plate, effectively preventing the occurrence of situations such as overcharging, overdischarging and overcurrent of the lithium battery, and can provide a controllable current of The processor 10, the water supply flow sensor 20, the water supply pressure sensor 30 and the NB-IOT module 40 are powered, and the processor 10 is powered by an analog-to-digital converter (Analog-Digital Converter, A/D) The interface can collect the voltage information of the lithium battery, and then monitor the voltage state of the lithium battery in real time, and report and remind in time when the battery is undervoltage.

In order to record the water supply flow information and the water supply pressure information in real time, further, the water supply monitoring wireless collection terminal also includes: a memory 70, and the memory 70 is connected to the serial peripheral interface (SerialPeripheral Interface) of the processor 10 , SPI) interface; the memory 70 is used to store the water supply flow information and the water supply pressure information. The memory 70 can record in real time the water supply flow information collected by the water supply flow sensor 20 and the water supply pressure information collected by the water supply pressure sensor 30, and the stored water supply flow information and the water supply pressure information can be sorted and passed through The NB-IOT module 40 is transmitted to the server 02.

In order to remind the processor 10 regularly so that the processor 10 reports the water supply flow information and the water supply pressure information, further, the water supply monitoring wireless collection terminal further includes: a real-time clock 80, the A real-time clock (Real-Time Clock, RTC) 80 is connected to the two-wire serial bus (Inter-Integrated Circuit, I2C) interface of the processor 10, and the real-time clock 80 is used for timing the processor 10 remind. The real-time clock 80 can remind the processor 10 regularly, so that the processor 10 reports the water supply flow information and the water supply pressure information to the server 02 .

In order to be configured for waking up the wireless collection terminal for water supply monitoring, further, the wireless collection terminal for water supply monitoring also includes: a magnetic switch reed switch 90, and the wake-up of the magnetic switch reed switch 90 and the processor 10 (WakeUp, WKUP) interface connected. The magnetic switch reed switch 90 is connected to the WKUP interface of the processor 10, and the water supply monitoring wireless collection terminal can be wake-up configured by using a magnetic switch and a magnet, so that the water supply monitoring wireless collection terminal The configuration is completed according to the preset configuration information. The preset configuration information is the configuration information preset by the server 02, which may include collection and transmission cycle information, trigger voltage upload warning information, and interrupt processing information. Of course, it may also include other information. Type information, which is not limited in this embodiment.

In order to further improve the data processing capability of the wireless acquisition terminal, further, the processor is an MCU processor. The data processing capability of the wireless collection terminal can be further improved through a Microcontroller Unit (MCU) processor, and the process of processing the water supply flow information and the water supply pressure information can be accelerated.

As shown in Figure 1, the wireless collection terminal for water supply monitoring includes: a processor 10, a water supply flow sensor 20, a water supply pressure sensor 30 and an NB-IOT module 40, the water supply flow sensor 20, the water supply pressure sensor 30 and the The NB-IOT modules 40 are respectively connected to the processor 10; the water supply flow sensor 20 is used to collect water supply flow information, and send the collected water supply flow information to the processor 10; the water supply pressure sensor 30 , for collecting water supply pressure information, and sending the collected water supply pressure information to the processor 10; the processor 10, for transmitting the water supply flow information and water supply pressure information through the NB-IOT module wirelessly 40 Transfer to server 02.

It can be understood that in this embodiment, the water supply flow sensor 20 and the water supply pressure sensor 30 can all be low power consumption RS485 interface devices using the Modbus communication protocol, and the water supply flow sensor 20 can be HDLCSL-5S As for the flow sensor, the water supply pressure sensor 30 may be a CHR3500 pressure sensor.

As shown in FIG. 1 , both the water supply flow sensor 20 and the water supply pressure sensor 30 are connected to the processor through a protocol switching device 50 .

It should be understood that the protocol conversion device 50 can convert information of different transmission protocols, and the protocol conversion device 50 can be connected to the UART interface of the processor 10, that is, the UART1 interface. 50 may be a UART-to-RS485 protocol conversion device, and of course other types of protocol conversion devices, which are not limited in this embodiment.

As shown in FIG. 1 , the NB-IOT module 40 is connected to the UART interface of the processor 10 .

It can be understood that the NB-IOT module 40 is connected to another UART interface of the processor 10, that is, the UART2 interface, and can achieve a stable connection with the NB-IOT module 40, thereby utilizing the NB-IOT module 40 has the characteristics of strong penetration under the surface well, and wirelessly transmits the water supply flow information and the water supply pressure information to the server 02 stably and quickly.

As shown in FIG. 1 , the power supply 60 is connected to the POWER interface of the processor 10 .

It should be noted that the power supply 60 can be a lithium battery, and the lithium battery can have its own protection board; the use of a lithium battery for the power supply can ensure the safety and service life of the power supply, and can adapt to underground operations through the built-in protection board. , effectively prevent lithium batteries from overcharging, overdischarging and overcurrent, etc., and can provide controllable current for the processor 10, the water supply flow sensor 20, the water supply pressure sensor 30 and the NB-IOT Module 40 supplies power, and the processor 10 collects the voltage information of the lithium battery through the A/D interface, and the lithium battery is connected to the A/D interface and the POWER interface of the processor 10, and the processor 10 is connected to the A The /D interface can collect the voltage information of the lithium battery, and then monitor the voltage state of the lithium battery in real time, and report and remind in time when the battery is undervoltage.

As shown in FIG. 1 , the memory 70 is connected to the SPI interface of the processor 10 .

It should be noted that the memory 70 is connected to the SPI interface of the processor 10, the memory 70 can be a memory with low power consumption, and can be a solid-state non-volatile memory module configured with 16MB for storing the The water supply flow information and the water supply pressure information, the processor 10 can locally or remotely clear the invalid data or the data that needs to be cleared in the memory 70, the memory 70 has the function of preventing accidental deletion, of course the memory 70 may also be another type of storage module or device, which is not limited in this embodiment.

As shown in FIG. 1 , the real-time clock 80 is connected to the I2C interface of the processor 10 .

It can be understood that the real-time clock 80 has the function of automatically correcting the time and synchronizing the system clock, which can be realized by setting a corresponding program, and is used to remind the processor 10 at regular intervals, so that the processor 10 will be regularly and uniformly The water supply flow information and the water supply pressure information stored in the memory 70 are sent to the server 02 through the NB-IOT module, and the timing time can be (1-24)*60 minutes, which can be set as The default is 1 hour, and the sending period must be an integer of the collection period. Of course, the timing time can also be set to other times, which is not limited in this embodiment.

As shown in FIG. 1 , the magnetic switch reed switch 90 is connected to the WKUP interface of the processor 10 .

It should be understood that, by connecting the magnetic switch reed switch 90 to the WKUP interface of the processor 10, the wireless water supply monitoring terminal can be configured to wake up by using a magnetic switch and a magnet, and the configuration can use NB - IOT wirelessly receives the preset configuration information sent by the server 02, the preset configuration information is the preset configuration information of the server 02, which may include collection and sending cycle information, trigger voltage upload warning information and interrupt processing information, etc. Of course, the information may also include other types of information, which is not limited in this embodiment.

As shown in Figure 1, the processor 10 can be an MCU processor, the data processing capability of the wireless acquisition terminal can be further improved by the MCU processor, and the progress of processing the water supply flow information and the water supply pressure information can be accelerated, so The processor 10 can analyze the recorded data of the water supply flow information and the water supply pressure information, compare and judge the corresponding water supply data with the corresponding preset threshold value, if the water supply data in one collection cycle exceeds the preset threshold value , then generate alarm information, the processor 10 will send the alarm information to the server 02, and skip the unified preset sending period.

Correspondingly, as shown in Figure 2, the utility model also provides a wireless collection system for water supply monitoring:

The wireless collection system for water supply monitoring includes an NB-IOT base station 01, a server 02 and at least one wireless collection terminal for water supply monitoring as described above. The NB-IOT base station 01 is wirelessly connected to the water supply monitoring wireless collection terminal through the NB-IOT module 40; the NB-IOT base station 01 is wirelessly connected to the server 02; the NB-IOT base station 01 collects The water supply data collected by the water supply monitoring wireless collection terminal, and transmit the water supply data to the server 02.

It can be understood that the wireless collection terminal for water supply monitoring is usually in a dormant mode, and is only in a wake-up state during timing collection, timing reporting, alarm reporting and interruption. Generally, the magnetic switch reed switch 90 can be used to control all The water supply monitoring wireless collection terminal performs wake-up configuration, and the NB-IOT base station 01 receives the preset configuration information sent by the server 02 wirelessly and transmits it wirelessly to the water supply monitoring wireless collection terminal through the NB-IOT module 40 Terminal, and then complete the corresponding parameter configuration; the waterproof level of the water supply monitoring wireless collection terminal is Ingress Protection (IP) 68 level, which can provide effective moisture-proof and waterproof protection in the underground surface well of the water supply pipe network.

The wireless collection terminal for water supply monitoring of the utility model includes: a processor, a water supply flow sensor, a water supply pressure sensor and an NB-IOT module, and the water supply flow sensor, the water supply pressure sensor and the NB-IOT module are respectively connected with the processing The water supply flow sensor collects water supply flow information, and sends the collected water supply flow information to the processor, and the water supply pressure sensor collects water supply pressure information, and sends the collected water supply pressure information to the processor , the processor wirelessly transmits the water supply flow information and water supply pressure information to the server through the NB-IOT module, and the wireless collection terminal for water supply monitoring in the utility model no longer uses GPRS technology, but uses NB-IOT technology , because the coverage gain of NB-IOT signal is 20db higher than that of GPRS signal, the signal penetration is strong, and the power consumption is also lower than that of GPRS technology. When used in the underground surface well of the water supply network, it has strong signal penetration, low power consumption and Advantages of lower cost.

The foregoing is only a preferred embodiment of the utility model. It should be pointed out that for those skilled in the art, some improvements can be made without departing from the principle of the utility model, and these improvements should also be regarded as the present invention. Protection scope of utility model.

Claims (10)

1. A wireless collection terminal for water supply monitoring, characterized in that, the wireless collection terminal for water supply monitoring includes: a processor, a water supply flow sensor, a water supply pressure sensor and an NB-IOT module, the water supply flow sensor, the water supply pressure sensor and the NB-IOT module are respectively connected to the processor; The water supply flow sensor is used to collect water supply flow information, and send the collected water supply flow information to the processor; The water supply pressure sensor is used to collect water supply pressure information, and send the collected water supply pressure information to the processor; The processor is configured to wirelessly transmit the water supply flow information and water supply pressure information to a server through the NB-IOT module. 2. The wireless collection terminal for water supply monitoring according to claim 1, wherein the water supply flow sensor and the water supply pressure sensor are both connected to the processor through a protocol switching device. 3. The wireless collection terminal for water supply monitoring according to claim 2, wherein the NB-IOT module is connected to the UART interface of the processor. 4. The wireless collection terminal for water supply monitoring according to claim 3, characterized in that, the wireless collection terminal for water supply monitoring further comprises: a power supply connected to the POWER interface of the processor. 5. The wireless collection terminal for water supply monitoring according to claim 4, wherein the power supply is a lithium battery, and the lithium battery is connected to the A/D interface and the POWER interface of the processor. 6. The water supply monitoring wireless collection terminal according to any one of claims 1-5, wherein the water supply monitoring wireless collection terminal further comprises: a memory, the memory is connected to the SPI interface of the processor; The memory is used for storing the water supply flow information and the water supply pressure information. 7. The water supply monitoring wireless collection terminal according to any one of claims 1-5, wherein the water supply monitoring wireless collection terminal further comprises: a real-time clock, and the real-time clock is connected to the I2C interface of the processor connected; The real-time clock is used to remind the processor regularly. 8. The wireless collection terminal for water supply monitoring according to any one of claims 1-5, wherein the wireless collection terminal for water supply monitoring further comprises: a magnetic switch reed switch, and the magnetic switch reed switch is connected to the connected to the WKUP interface of the above-mentioned processor. 9. The wireless collection terminal for water supply monitoring according to any one of claims 1-5, wherein the processor is an MCU processor. 10. A wireless collection system for water supply monitoring, characterized in that the wireless collection system for water supply monitoring includes an NB-IOT base station, a server and at least one wireless collection terminal for water supply monitoring according to any one of claims 1-9; The NB-IOT base station is wirelessly connected to the water supply monitoring wireless collection terminal through the NB-IOT module; The NB-IOT base station is wirelessly connected to the server; The NB-IOT base station collects the water supply data collected by the water supply monitoring wireless collection terminal, and transmits the water supply data to the server.