CN218566576U

CN218566576U - Multi-multiplexing sensor board based on lora

Info

Publication number: CN218566576U
Application number: CN202222949954.XU
Authority: CN
Inventors: 莫锦攀; 曹青松; 王书果; 王月; 崔金香
Original assignee: Nanjing Jialong Electric Technology Co ltd
Current assignee: Nanjing Jialong Electric Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-03
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a lot ra-based multiplex sensor board, including the PCB board, be equipped with sensor support stud on the PCB board, support the stud through the sensor and install the sensor, wherein noise sensor protrusion in PCB board, noise sensor below sets up electric capacity and row needle; the noise collector of the noise sensor is higher than the capacitor and the pin header; the PCB is also provided with an STM32 chip and a lora module in bidirectional communication connection with the STM32 chip; the lora module is used for setting 470M frequency band antennas; the STM32 chip is in control connection with the relay; the relay is connected with the 2.4Ghz frequency band antenna; the PCB board is supplied with power through the 3.3V lithium battery, an external 12V power supply circuit is further arranged on the PCB board, and the external 12V power supply circuit supplies power to the noise sensor or the ozone sensor through a 5V switch power supply in the board. The utility model discloses a scheme has the function of ultra-low power consumption to realize using for a long time when with the battery powered mode, this design has solved remote collection and wiring difficulty and live time's problem among the prior art.

Description

Multi-multiplexing sensor board based on lora

Technical Field

The utility model relates to an electronic information technical field, especially ultra-low power consumption multiplex sensor board based on lora.

Background

With the rapid and continuous growth of national economy, the power industry in China also develops rapidly, the development of the power industry is bound to require the improvement of the automation level of a power system, the data management of a transformer substation monitoring system is particularly important to improve the automation level of the power system, the stability and the accuracy of data reporting are particularly outstanding, and the characteristic of low power consumption is particularly important.

Environmental monitoring, remote control, entrance guard's equipment all are indispensable some in the transformer substation. The schemes of different sensors corresponding to different boards are difficult to be compatible with each other, and the expandability and the upgrading strategy of the sensors are difficult to realize invisibly, and meanwhile, the management cost is increased. With the rapid development of electronic technology and computer technology, the importance of power systems is rapidly increased, the power consumption is continuously increased, and the scientific data monitoring and reporting of power utilization equipment saves much time for safety monitoring. Meanwhile, the problems of unnecessary waste of manpower and material resources and the like are avoided.

In summary, the requirements of the prior art, such as complete function requirements, low power consumption requirements, high stability requirements, and the like, of a sensor board are urgently needed to be solved.

Disclosure of Invention

To the above-mentioned current technical problem, the utility model discloses a many multiplexing sensor boards based on lora realizes the intelligent auxiliary monitoring system's of transformer substation environmental monitoring data to and to the required remote control of environmental change.

In order to realize the purpose, the utility model discloses a technical scheme be:

a lora-based multi-multiplexing sensor board comprises a PCB, wherein a sensor supporting stud is arranged on the PCB, a sensor is installed through the sensor supporting stud, the type of the supported sensor comprises one or more of a temperature and humidity sensor, a smoke sensor, an SF6 sensor, an ozone sensor and a water immersion sensor, and the sensor further comprises a noise sensor; the noise sensor protrudes out of the PCB, and a capacitor and a pin header are arranged below the noise sensor; the noise collector of the noise sensor is higher than the height of the capacitor, the pin header and other components so as to avoid touch.

The system comprises an STM32 chip and a lora module in bidirectional communication connection with the STM32 chip; the lora module is provided with a 470M frequency band antenna; the STM32 chip is in control connection with the relay; the relay is connected with the 2.4Ghz band antenna.

The PCB board passes through 3.3V lithium cell power supply, still is equipped with external 12V supply circuit on the PCB board, and external 12V supply circuit passes through the inboard 5V switching power supply and turns into 5V constant voltage power supply and supplies power to noise sensor or ozone sensor.

Furthermore, the sensor (any one of a humidity sensor, a noise sensor, a smoke sensor, an SF6 sensor, an ozone sensor, a water sensor and a noise sensor) can be integrated on the board, and can also be extended outside through a pull wire to be connected with other types of sensors in an extending mode, and the extended connected sensor can also comprise one or more of a temperature and humidity sensor, a smoke sensor and a water sensor.

Furthermore, the front side of the PCB is connected with a key circuit, and the back side of the PCB is connected with a power switch and a JLINK download circuit.

Preferably, the JLINK downloading circuit is provided with a JLINK serial port downloading interface; the PCB board also comprises an external communication RS485 serial port.

As preferred, the PCB board is installed on the fixed plate, and the fixed plate adopts PCB board material or ya keli material.

The ultra-low power consumption multi-multiplexing sensor board based on lora uses the necessary data stored in the chip, so that the board can be used for realizing multiple purposes, and the upper and lower alarm limits can be changed and monitored by using the internal data in the chip.

The utility model discloses following beneficial effect has:

the PCB and the built-in sensor are powered by the lithium battery, so that ultra-low power consumption is achieved, the standby current is 3uA, the working current is less than 1ma, and one 1200mah lithium battery can maintain the normal working time of at least 2 years.

By acquiring data of various sensors, alarm information can be sent by faster and more accurate data for monitoring the emergency, and meanwhile, the transmission distance is not problematic by using the antenna with the 2.4Ghz frequency band. In order to ensure uninterrupted operation all day long, the program is provided with a monitoring mechanism, recovery can be realized, the 470M frequency band antenna is used for control, and the stability of control is realized.

Drawings

Fig. 1 is a schematic front view of a lora-based multi-use sensor board according to an embodiment of the present invention.

Fig. 2 is a schematic side view of a lora-based multi-sensor board according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a lora-based multi-multiplexing sensor board according to an embodiment of the present invention;

Detailed Description

In order to better understand the present invention for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, fig. 1 is the utility model discloses the front sketch of the many multiplexing sensor boards of ultra-low power consumption based on lora, including the PCB board, be equipped with the sensor support double-screw bolt on the PCB board, the PCB board adopts the 3.3V power supply, adopts 12V to change the 5V power supply to specific sensor, and noise sensor height highly needs to be greater than the height of following components and parts, in order to avoid touching, relay 2 switches on the control in order to realize fan light according to control signal, and key circuit 3 realizes reset function, and switch 4 provides 12V power supply support, and download circuit 5 realizes the download of procedure and the function debugging of board.

The PCB is also provided with an STM32 chip and a lora module in bidirectional communication connection with the STM32 chip; the lora module is used for setting 470M frequency band antennas; the STM32 chip is in control connection with the relay; the relay is connected with the 2.4Ghz band antenna. After the data of monitoring are collected, inspected and processed through the STM32 chip, the data are transmitted to the lora module and the functions of reporting the data to the gateway are realized, and meanwhile, the gateway is supported to transmit a control command to the lora module, so that the remote fan is controlled to be switched on and switched off, and the problems of difficulty in remote collection and wiring and service time in the prior art are solved.

As shown in fig. 2 and 3, fig. 2 is the utility model discloses side schematic diagram of the multi-purpose sensor board of ultra-low power consumption based on lora through with noise sensor protrusion in the PCB board, noise sensor's noise collector's height need be greater than the height of components and parts such as lower side row needle and electric capacity. A sensor 1 is installed through a sensor support stud, an SF6 sensor, an ozone sensor or a water sensor is installed in the embodiment, a temperature and humidity sensor 2 is integrated on a PCB, a key circuit 3 is connected to the front side of the PCB, and a power switch 4 and a JLINK download circuit 5 are connected to the back side of the PCB. The JLINK downloading circuit 5 is provided with a JLINK serial port downloading interface; the PCB board also comprises an external communication RS485 serial port. The PCB board is installed on the fixed plate, and the fixed plate adopts the PCB board material.

The data monitoring control panel of the integrated multisensor that this embodiment designed, after accomplishing production, carries out test work such as program burning, functional verification, gateway verification with it, has solved the performance of sensor board, low-power consumption scheduling problem or demand.

The above embodiment is only for explaining the utility model discloses a technical thought, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.

Claims

1. A multi-multiplexing sensor board based on lora which characterized in that: the sensor comprises a PCB, a sensor support stud arranged on the PCB, and a noise sensor, wherein the sensor is installed through the sensor support stud and comprises one or more of a temperature and humidity sensor, a smoke sensor, an SF6 sensor, an ozone sensor and a water immersion sensor; the noise collector of the noise sensor is higher than the capacitor and the pin header;

the PCB is also provided with an STM32 chip and a lora module in bidirectional communication connection with the STM32 chip; the lora module is provided with a 470M frequency band antenna; the STM32 chip is in control connection with the relay; the relay is connected with the 2.4Ghz frequency band antenna;

the PCB board is supplied with power through the 3.3V lithium battery, an external 12V power supply circuit is further arranged on the PCB board, and the external 12V power supply circuit supplies power to the noise sensor or the ozone sensor through a 5V switch power supply in the board.

2. The lora-based multi-multiplexing sensor board of claim 1, wherein:

the sensor is connected to the PCB in an extending mode through a sensor extending interface pull wire, and the sensor connected in the extending mode comprises one or more of a temperature and humidity sensor, a smoke sensor and a water immersion sensor.

3. The lora-based multi-multiplexing sensor board of claim 1, wherein:

the front side of the PCB is connected with a key circuit, and the back side of the PCB is connected with a power switch and a JLINK download circuit.

4. The lora-based multi-multiplexing sensor board of claim 3, wherein:

the JLINK downloading circuit is provided with a JLINK serial port downloading interface; the PCB board also comprises an external communication RS485 serial port.

5. The lora-based multi-reuse sensor board according to any one of claims 1 to 4, wherein:

the PCB board is installed on the fixed plate, and the fixed plate adopts PCB board material or ya keli material.