ARM platform photoelectric detection circuit module for water quality on-line monitoring device

Abstract

The utility model discloses an ARM platform photoelectric detection circuit module for a water quality on-line monitoring device, which comprises an ARM processing circuit. The ARM processing circuit is connected with a DCDC power supply module, an LDO power supply module, a 232 transmit-receive communication module, a 485 transmit-receive communication module, a USB circuit module, a digestion temperature detection circuit module, an environment temperature detection circuit module, a photoelectric conversion circuit module, a first analog quantity current signal output module, a second analog quantity current signal output module and an optical signal driving circuit module. An IO output circuit driving module, an IO input circuit module and a heating driving circuit module. According to the ARM platform photoelectric detection circuit module for the water quality online monitoring device, digital quantity output of detection points and data uploading or online information transmission can be controlled according to commands input by external equipment or a human-computer interface, so that the whole field equipment can operate efficiently and fully automatically.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an ARM platform photoelectric detection circuit module for an online water quality monitoring device. Background Art

[0002] The ARM platform photoelectric detection circuit module of the water quality online monitoring device is a circuit for water quality analysis. In order to protect the water environment, it is necessary to strengthen the monitoring of sewage discharge. Among them, the design of the detection point and the quality of the detection instrument (mainly the water quality analyzer) play a vital role in water environment monitoring. Chemical and physical methods are mainly used to determine the content of various chemical components in water. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of the ARM platform photoelectric detection circuit module of the water quality online monitoring device.

[0003] The ARM platform photoelectric detection circuit module of the existing water quality online monitoring device has certain drawbacks when used. The water quality analyzers on the market are currently divided into three types: simple analysis, full analysis and special analysis, but they all have the problems of single function, high cost and low degree of automation, which has brought certain adverse effects to the actual use process. For this reason, we propose an ARM platform photoelectric detection circuit module for water quality online monitoring devices. Utility Model Content

[0004] Technical problem solved: In view of the shortcomings of the prior art, the utility model provides an ARM platform photoelectric detection circuit module for an online water quality monitoring device, which can control the digital output of the detection point and the upload of data or online transmission of information according to the commands input by an external device or a human-machine interface, so that the entire on-site equipment can run efficiently and fully automatically, which can effectively solve the problems in the background technology.

[0005] Technical solution: To achieve the above purpose, the technical solution adopted by the utility model is: an ARM platform photoelectric detection circuit module for an online water quality monitoring device, including an ARM processing circuit, wherein the ARM processing circuit is connected with a DCDC power supply module, an LDO power supply module, a 232 transceiver communication module, a 485 transceiver communication module, a USB circuit module, a digestion temperature detection circuit module, an ambient temperature detection circuit module, a photoelectric conversion circuit module, a first analog current signal output module, a second analog current signal output module, an optical signal driving circuit module, an IO output circuit driving module, an IO input circuit module and a heating driving module. The ARM processing circuit is electrically connected to the output ends of the DCDC power supply module, the LDO power supply module, the digestion temperature detection circuit module, the ambient temperature detection circuit module, the photoelectric conversion circuit module and the IO input circuit module. The ARM processing circuit is bidirectionally electrically connected to the 232 transceiver communication module, the 485 transceiver communication module and the USB circuit module. The output end of the ARM processing circuit is electrically connected to the input ends of the first analog current signal output module, the second analog current signal output module, the optical signal driving circuit module, the IO output circuit driving module and the heating driving circuit module.

[0006] Preferably, the ARM processing circuit includes a UART interface, an SPI interface, a FSMC input and output interface, an ADC acquisition interface, a circuit board storage unit, a timer output interface, an IO input interface and an IO output interface, the UART interface is used to connect to the transceiver communication circuit module, the FSMC input and output interface is used to connect to the USB circuit module, the SPI interface is used to connect to the photoelectric conversion circuit module and the circuit board storage unit, the timer output interface is connected to the first analog current signal output module and the second analog current signal output module, the IO input interface is used to connect to the IO input circuit module, and the IO output interface is used to connect to the IO output circuit driver module.

[0007] Preferably, the processing chip of the ARM processing circuit is STM32F103 with a 32-bit ARM Cortex-M3 core and a main frequency of 72MHZ.

[0008] Preferably, there are five USART interfaces, including USART1 interface, USART2 interface, USART3 interface, USART4 interface and USART5 interface, the transceiver communication circuit module includes a 232 transceiver communication module and a 485 transceiver communication module, the USART1 interface and USART3 interface are used for the 232 transceiver communication module, the USART2 interface is used to connect the 485 transceiver communication module, the USART4 interface is used to connect the 232 transceiver communication module, and the USART5 interface is used to connect the spare 485 transceiver communication module.

[0009] Preferably, the controller uses one SPI interface and two analog SPI serial ports. The hardware SPI2 interface is used for the circuit board storage unit. One of the analog SPI interfaces is used to connect to the photoelectric conversion circuit module, and the other is used to control the 24V load output with the relay board expansion IO.

[0010] Preferably, there are eight IO output circuit drive modules, two IO input circuit modules, and the pulse frequency is no higher than 100KHZ.

[0011] Beneficial effects: Compared with the prior art, the utility model provides an ARM platform photoelectric detection circuit module for an online water quality monitoring device, which has the following beneficial effects: The ARM platform photoelectric detection circuit module for an online water quality monitoring device can control the digital output of the detection point and the upload of data or online transmission of information according to the command input by an external device or a human-machine interface, so that the entire on-site equipment can operate efficiently and fully automatically, and can realize the connection of an industrial control touch screen, light source output, light source signal return analysis, water temperature measurement, analog signal output, IO pulse input and output. The ARM platform photoelectric detection circuit module of the entire online water quality monitoring device has a simple structure, is easy to operate, and has better effect than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the ARM platform photoelectric detection circuit module of the utility model for the online water quality monitoring device.

[0013] In the figure: 1. ARM processing circuit; 2. DCDC power supply module; 3. LDO power supply module; 4. 232 transceiver communication module; 5. 485 transceiver communication module; 6. USB circuit module; 7. Digestion temperature detection circuit module; 8. Ambient temperature detection circuit module; 9. Photoelectric conversion circuit module; 10. First analog current signal output module; 11. Second analog current signal output module; 12. Optical signal driving circuit module; 13. IO output circuit driving module; 14. IO input circuit module; 15. Heating driving circuit module. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0015] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1As shown, the ARM platform photoelectric detection circuit module for the online water quality monitoring device includes an ARM processing circuit 1, the ARM processing circuit 1 is connected to a DCDC power module 2, an LDO power module 3, a 232 transceiver communication module 4, a 485 transceiver communication module 5, a USB circuit module 6, a digestion temperature detection circuit module 7, an ambient temperature detection circuit module 8, a photoelectric conversion circuit module 9, a first analog current signal output module 10, a second analog current signal output module 11, an optical signal driving circuit module 12, an IO output circuit driving module 13, an IO input circuit module 14 and a heating driving circuit module 15, and the input end of the ARM processing circuit 1 is connected to the DCDC power module 2, the LDO power module 3, the digestion temperature detection circuit module 7, the ambient temperature detection circuit module 8, the photoelectric conversion circuit module 9, the first analog current signal output module 10, the second analog current signal output module 11, the optical signal driving circuit module 12, the IO output circuit driving module 13, the IO input circuit module 14 and the heating driving circuit module 15. The temperature detection circuit module 7, the ambient temperature detection circuit module 8, the photoelectric conversion circuit module 9 are electrically connected to the output end of the IO input circuit module 14, the ARM processing circuit 1 is bidirectionally electrically connected to the 232 transceiver communication module 4, the 485 transceiver communication module 5 and the USB circuit module 6, the output end of the ARM processing circuit 1 is electrically connected to the input end of the first analog current signal output module 10, the second analog current signal output module 11, the optical signal drive circuit module 12, the IO output circuit drive module 13 and the heating drive circuit module 15, and the digital output of the detection point and the upload of data or the online transmission of information can be controlled according to the command input by the external device or the human-machine interface, so that the entire on-site equipment can operate efficiently and automatically.

[0018] Furthermore, the ARM processing circuit 1 includes a UART interface, an SPI interface, a FSMC input and output interface, an ADC acquisition interface, a circuit board storage unit, a timer output interface, an IO input interface and an IO output interface. The UART interface is used to connect to the transceiver communication circuit module, the FSMC input and output interface is used to connect to the USB circuit module 6, the SPI interface is used to connect to the photoelectric conversion circuit module 9 and the circuit board storage unit, the timer output interface is connected to the first analog current signal output module 10 and the second analog current signal output module 11, the IO input interface is used to connect to the IO input circuit module 14, and the IO output interface is used to connect to the IO output circuit driver module 13.

[0019] Furthermore, the processing chip of the ARM processing circuit 1 is a STM32F103 with a 32-bit ARM Cortex-M3 core and a main frequency of 72 MHZ.

[0020] Furthermore, there are five USART interfaces, including USART1 interface, USART2 interface, USART3 interface, USART4 interface and USART5 interface, the transceiver communication circuit module includes a 232 transceiver communication module 4 and a 485 transceiver communication module 5, the USART1 interface and the USART3 interface are used for the 232 transceiver communication module 4, the USART2 interface is used to connect the 485 transceiver communication module 5, the USART4 interface is used to connect the 232 transceiver communication module 4, and the USART5 interface is used to connect the spare 485 transceiver communication module 5.

[0021] Furthermore, the controller uses one SPI interface and two analog SPI serial ports. The hardware SPI2 interface is used for the circuit board storage unit. One of the analog SPI interfaces is used to connect to the photoelectric conversion circuit module 9, and the other is used to control the 24V load output with the relay board expansion IO.

[0022] Furthermore, there are eight IO output circuit driving modules 13, two IO input circuit modules 14, and the pulse frequencies are all no higher than 100 KHZ.

[0023] Working principle: The utility model includes an ARM processing circuit 1, a DCDC power supply module 2, an LDO power supply module 3, a 232 transceiver communication module 4, a 485 transceiver communication module 5, a USB circuit module 6, a digestion temperature detection circuit module 7, an ambient temperature detection circuit module 8, a photoelectric conversion circuit module 9, a first analog current signal output module 10, a second analog current signal output module 11, an optical signal driving circuit module 12, an IO output circuit driving module 13, an IO input circuit module 14, and a heating driving circuit module 15. The DCDC module is used to convert the industrial power supply 24V into a voltage suitable for chip operation; the LDO module is used to convert the power supply 12V into a working voltage suitable for the acquisition circuit;

[0024] The industrial control touch screen can be connected to the 232 transceiver circuit module to realize human-computer interaction on the controller so as to input parameters;

[0025] The optical signal driving circuit module is used to control the output of the LED light source, provide constant current driving to the LED lamp to ensure stable light irradiation of the water sample, and receive the light transmitted from the water sample through the silicon photodiode, and then feed the light back to the controller in the form of weak current through the photoelectric conversion circuit module, that is, convert the feedback optical signal into a voltage signal, which is then read by the ADC chip and converted into a data stream that can be recognized by the STM32F103;

[0026] USB circuit module, used to realize program burning and updating of ARM controller through USB flash drive;

[0027] Analog current signal output module, STM32F103 converts the data stream sent to the outside into a current signal through the PAC chip.

[0028] IO output driver module, which can be used to connect external motors to control the operation of the motors;

[0029] The IO input circuit module can be connected to the alarm to monitor the liquid level high or low limit and other conditions.

[0030] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An ARM platform photoelectric detection circuit module for an online water quality monitoring device, comprising an ARM processing circuit (1), characterized in that: The ARM processing circuit (1) is connected to a DCDC power module (2), an LDO power module (3), a 232 transceiver communication module (4), a 485 transceiver communication module (5), a USB circuit module (6), a digestion temperature detection circuit module (7), an ambient temperature detection circuit module (8), a photoelectric conversion circuit module (9), a first analog current signal output module (10), a second analog current signal output module (11), an optical signal driving circuit module (12), an IO output circuit driving module (13), an IO input circuit module (14) and a heating driving circuit module (15). The input end of the ARM processing circuit (1) is connected to the DCDC power module (2). The LDO power supply module (3), the digestion temperature detection circuit module (7), the ambient temperature detection circuit module (8), the photoelectric conversion circuit module (9) are electrically connected to the output end of the IO input circuit module (14); the ARM processing circuit (1) is bidirectionally electrically connected to the 232 transceiver communication module (4), the 485 transceiver communication module (5) and the USB circuit module (6); the output end of the ARM processing circuit (1) is electrically connected to the input end of the first analog current signal output module (10), the second analog current signal output module (11), the optical signal driving circuit module (12), the IO output circuit driving module (13) and the heating driving circuit module (15).

2. The ARM platform photoelectric detection circuit module for an online water quality monitoring device according to claim 1, characterized in that: The ARM processing circuit (1) comprises a UART interface, an SPI interface, an FSMC input and output interface, an ADC acquisition interface, a circuit board storage unit, a timer output interface, an IO input interface and an IO output interface, wherein the UART interface is used to connect to a transceiver communication circuit module, the FSMC input and output interface is used to connect to a USB circuit module (6), the SPI interface is used to connect to a photoelectric conversion circuit module (9) and the circuit board storage unit, the timer output interface is connected to a first analog current signal output module (10) and a second analog current signal output module (11), the IO input interface is used to connect to an IO input circuit module (14), and the IO output interface is used to connect to an IO output circuit driver module (13).

3. The ARM platform photoelectric detection circuit module for the online water quality monitoring device according to claim 2, characterized in that: The processing chip of the ARM processing circuit (1) is a 32-bit STM32F103 with an ARM Cortex-M3 core and a main frequency of 72 MHZ.

4. The ARM platform photoelectric detection circuit module for an online water quality monitoring device according to claim 3, characterized in that: There are five USART interfaces, including a USART1 interface, a USART2 interface, a USART3 interface, a USART4 interface and a USART5 interface. The transceiver communication circuit module includes a 232 transceiver communication module (4) and a 485 transceiver communication module (5). The USART1 interface and the USART3 interface are used for the 232 transceiver communication module (4), the USART2 interface is used for connecting the 485 transceiver communication module (5), the USART4 interface is used for connecting the 232 transceiver communication module (4), and the USART5 interface is used for connecting a spare 485 transceiver communication module (5).

5. The ARM platform photoelectric detection circuit module for an online water quality monitoring device according to claim 4, characterized in that: The controller uses one SPI interface and two analog SPI serial ports. The hardware SPI2 interface is used for the circuit board storage unit. One of the analog SPI interfaces is used to connect to the photoelectric conversion circuit module (9), and the other is used to connect to the relay board expansion IO to control the 24V load output.

6. The ARM platform photoelectric detection circuit module for an online water quality monitoring device according to claim 5, characterized in that: There are eight IO output circuit drive modules (13), and two IO input circuit modules (14), and the pulse frequency of both modules is no higher than 100 KHZ.

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