Multi-parameter water quality on-line analyzer controller
By designing a multi-parameter water quality online analyzer controller, using MODBUS input board and multiple input/output boards, it supports sensor connections in eight communication methods, which solves the problem that the controller cannot connect sensors from different manufacturers in the existing technology. The problem is that the free combination and logic control functions of sensors are realized, reducing user costs.
Patent Information
- Application Number
- CN202421454660.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The existing water quality analyzer controller cannot connect sensors from different manufacturers at the same time, and can only support one communication method, which limits the sensor's connection freedom and logic control functions, and increases the user's procurement and use costs.
A multi-parameter water quality online analyzer controller is designed, using MODBUS input board, voltage/current input board, voltage/current output board, auxiliary power interface and SPDT relay control interface, supporting sensors with eight different communication methods Connect and realize real-time communication with the host computer through the MODBUS communication interface.
The controller can freely combine different types of sensors in limited slots, support multiple communication methods, enhance logic control functions, reduce user costs, and simplify construction and wiring processes.
Smart Images
Figure CN222529661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a controller, in particular to a multi-parameter water quality online analyzer controller, belonging to the technical field of water quality analyzers. Background Art
[0002] Water quality analyzer is an instrument used to detect and analyze various chemical components and biological indicators in water bodies. It is an important tool for water environment monitoring and management. Its main function is to quickly and accurately monitor changes in water quality to ensure drinking water safety and environmental protection.
[0003] In the field of water quality inspection and testing, most of the existing instruments are one sensor connected to one controller, or multiple sensors from the same manufacturer are connected to one controller from the same manufacturer. It is impossible to connect one controller to sensors of different models from multiple manufacturers. Moreover, the existing controller can only connect sensors with the same communication method. For example, after connecting a sensor with current communication, it is impossible to connect a sensor with voltage communication or MODBUS communication. The number of sensor connections and the number of output types are limited by the number of controller slots. When the total number of slots remains unchanged, free combination cannot be achieved, and there is no logic control function. For occasions that require more parameter measurements, expansion modules must be added or multiple controllers must be used. For occasions that require logic control, PLC equipment must be added. This not only increases the user's procurement and use costs, but also increases the difficulty of construction and wiring. For this reason, a multi-parameter water quality online analyzer controller is proposed. Utility Model Content
[0004] In view of this, the utility model provides a multi-parameter water quality online analyzer controller to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.
[0005] The technical solution of the embodiment of the utility model is implemented as follows: a multi-parameter water quality online analyzer controller includes a housing component and a main control mechanism, the housing component includes a storage box, a front cover plate and a front cover film;
[0006] The front cover is arranged on one side of the storage box, the front cover film is attached to one side of the front cover, and the main control mechanism is arranged inside the storage box; the main control mechanism includes a main control board, a plurality of MODBUS input boards, a plurality of voltage / current input boards, a plurality of voltage / current output boards, a plurality of auxiliary power supply interfaces - eight-way, a plurality of SPDT relay control interfaces - eight-way, a MODBUS communication interface and an auxiliary power supply voltage selection interface;
[0007] Among them, the main control board is installed on one side of the inner wall of the storage box, several MODBUS input boards, voltage / current input boards and voltage / current output boards are plugged into the top of one side of the main control board, several auxiliary power supply interfaces - eight-way and SPDT relay control interfaces - eight-way are installed on the bottom of one side of the main control board, the MODBUS communication interface is installed on one side of the main control board, and the auxiliary power supply voltage selection interface is installed on the other side of the main control board.
[0008] Further preferably, the inner side wall of the front cover plate is symmetrically slidably connected with four front cover fixing bolts, and one end of the four front cover fixing bolts is threadedly connected to the interior of the storage box.
[0009] Further preferably, an LCD screen is installed in the middle of one side of the front cover plate close to the storage box, a touch screen interface is installed on the top of one side of the main control board, and the LCD screen and the touch screen interface are coupled and connected by wires.
[0010] Further preferably, a buzzer, a mainboard reset button and a mainboard battery are installed on the top of one side of the main control board, and a mainboard fuse and a mainboard power supply are installed on the bottom of one side of the main control board.
[0011] Further preferably, a plurality of waterproof nozzles are installed at the bottom of the inner wall of the storage box.
[0012] Further preferably, the communication mode of the main control mechanism includes but is not limited to current communication, voltage communication and MODBUS communication.
[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:
[0014] 1. The utility model uses MODBUS input board, voltage / current input board, voltage / current output board, auxiliary power interface-eight-way and SPDT relay control interface-eight-way to enable the controller to simultaneously connect eight sensors with different communication modes according to actual needs. In the case of only eight slots, they can be freely combined according to site needs or customer requirements. In addition, the communication board adopts the latest digital address communication technology. The sensor communication address is not limited by the physical address and can be connected to any slot. The main control mechanism can automatically address and lock to ensure the normal communication and operation of the sensor. The input / output board adopts a quick and intuitive dial switch, which can quickly switch addresses and is easy to operate.
[0015] 2. The utility model configures a MODBUS output for the controller by utilizing the MODBUS communication interface for real-time communication with the host computer, and each sensor can be independently set up, and the built-in eight-way output relay can be used to associate any parameter for action, and can also realize closed-loop control of other electrical equipment.
[0016] 3. The MODBUS input board is embedded with a bus protocol. Through the embedded bus protocol, the entire communication parameters can be set on the controller, including communication master / slave address, transmission mode, baud rate, start bit, data bit, check bit, stop bit, storage address and data type. It can adapt to almost all MODBUS communication electrodes on the market.
[0017] 4. Both the voltage / current input card and the voltage / current output card have two working modes for users to choose from, namely active working mode and passive working mode, and can provide a driving capability of no less than 2.5KΩ loop impedance, which is suitable for almost all analog communication scenarios.
[0018] 5. The controller can be set with 8 independent time-controlled electronic switches, and cooperate with 8-way SPDT relays and DC12 / 24V or AC220V auxiliary power supply to form a small logic control unit, which can meet the requirements of small automatic control system without using PLC.
[0019] The above summary is for the purpose of description only and is not limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a structural diagram of the utility model;
[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0023] Figure 3 It is an exploded view of the utility model;
[0024] Figure 4 It is a structural schematic diagram of the main control board of the utility model.
[0025] Figure 5 This is a schematic diagram of the circuit principle of the main control board of the utility model.
[0026] Figure 6 This is a schematic diagram of the principle of the 485 input communication card of the main control board of the utility model.
[0027] Figure 7 This is a schematic diagram of the AI input communication card principle of the main control board of the utility model.
[0028] Figure 8 The figure is a schematic diagram of the principle of the AO output communication card of the main control board of the utility model.
[0029] Figure numerals: 1. Housing assembly; 2. Main control mechanism; 101. Storage box; 102. Front cover; 103. Front cover membrane; 201. Main control board; 202. MODBUS input board; 203. Voltage / current input board; 204. Voltage / current output board; 205. Auxiliary power supply interface - eight-way; 206. SPDT relay control interface - eight-way; 207. MODBUS communication interface; 208. Auxiliary power supply voltage selection interface; 3. LCD screen; 4. Waterproof nozzle; 5. Front cover fixing bolt; 6. Touch screen interface; 7. Buzzer; 8. Mainboard reset button; 9. Mainboard battery; 10. Mainboard fuse; 11. Mainboard power supply. DETAILED DESCRIPTION
[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0031] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities.
[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0033] like Figure 1-6As shown, the embodiment of the utility model provides a multi-parameter water quality online analyzer controller, including a housing component 1 and a main control mechanism 2, the housing component 1 includes a storage box 101, a front cover plate 102 and a front cover film 103;
[0034] Among them, the front cover plate 102 is arranged on one side of the storage box 101, the front cover film 103 is attached to one side of the front cover plate 102, and the main control mechanism 2 is arranged inside the storage box 101; the main control mechanism 2 includes a main control board 201, a plurality of MODBUS input boards 202, a plurality of voltage / current input boards 203, a plurality of voltage / current output boards 204, a plurality of auxiliary power supply interfaces - eight-way 205, a plurality of SPDT relay control interfaces - eight-way 206, a MODBUS communication interface 207 and an auxiliary power supply voltage selection interface 208;
[0035] Among them, the main control board 201 is installed on one side of the inner wall of the storage box 101, a number of MODBUS input boards 202, voltage / current input boards 203 and voltage / current output boards 204 are all plugged into the top of one side of the main control board 201, a number of auxiliary power supply interfaces - eight-way 205 and SPDT relay control interfaces - eight-way 206 are all installed on the bottom of one side of the main control board 201, the MODBUS communication interface 207 is installed on one side of the main control board 201, and the auxiliary power supply voltage selection interface 208 is installed on the other side of the main control board 201.
[0036] In one embodiment, four front cover fixing bolts 5 are symmetrically slidably connected to the inner side wall of the front cover plate 102, and one end of the four front cover fixing bolts 5 is threadedly connected to the inside of the storage box 101;
[0037] The front cover plate 102 is fixed to one side of the storage box 101 by using the front cover fixing bolts 5 .
[0038] In one embodiment, an LCD screen 3 is installed in the middle of one side of the front cover plate 102 close to the storage box 101, and a touch screen interface 6 is installed on the top of one side of the main control board 201. The LCD screen 3 and the touch screen interface 6 are connected by wire coupling;
[0039] The detected data is displayed by using the LCD screen 3 in cooperation with the main control board 201 , and the touch screen interface 6 is used to connect the LCD screen 3 and the main control board 201 .
[0040] In one embodiment, a buzzer 7, a mainboard reset button 8 and a mainboard battery 9 are installed on the top of one side of the main control board 201, and a mainboard fuse 10 and a mainboard power supply 11 are installed on the bottom of one side of the main control board 201;
[0041] The buzzer 7 is used to cooperate with the main control board 201 to realize the buzzer alarm function, the main board reset button 8 is used to reset the main control board 201, and the main board fuse 10 is used to protect the main control board 201.
[0042] In one embodiment, a plurality of waterproof ports 4 are installed at the bottom of the inner wall of the storage box 101;
[0043] The waterproof connector 4 is used to introduce the wires into the storage box 101 and to provide waterproof protection for the interface.
[0044] In one embodiment, the communication mode of the main control mechanism 2 includes but is not limited to current communication, voltage communication and MODBUS communication.
[0045] When the utility model is working, the sensor for voltage or current communication is connected to the voltage / current input board 203, and then the voltage / current input board 203 is installed on any slot of the controller mainboard, and the main control board 201 automatically addresses according to the address of the voltage / current input board 203 and locks the channel. The sensor converts the test value into a voltage or current value and transmits it to the voltage / current input board 203 through a filter and an amplifier. The voltage / current input board 203 converts the collected voltage or current signal into a digital signal through an analog-to-digital converter and transmits it to the single-chip microcomputer. The single-chip microcomputer on the voltage / current input board 203 transmits the digital signal to the MODBUS communication chip after calculation. The MODBUS communication chip transmits the signal containing the test value to the single-chip microcomputer on the main control board 201 through the MODBUS communication interface 207. After the single-chip microcomputer on the main control board 201 processes the signal, it is displayed on the LCD screen 3.
[0046] The MODBUS sensor is connected to the MODBUS input board 202, and then the MODBUS input board 202 is installed on any slot of the main control board 201. The main control board 201 will automatically address according to the address of the MODBUS input board 202 and lock the channel. The sensor converts the test value into a MODBUS signal and transmits it to the MODBUS input board 202 after calculation and processing. The MODBUS input board 202 transmits the MODBUS signal to the single-chip microcomputer after calculation. The single-chip microcomputer on the MODBUS input board 202 transmits the digital signal to the MODBUS communication chip after calculation. The MODBUS communication chip transmits the signal containing the test value to the single-chip microcomputer on the main control board 201 through the MODBUS communication interface 207. The signal is processed by the single-chip microcomputer of the main control board 201 and then displayed on the LCD touch screen.
[0047] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A multi-parameter water quality online analyzer controller, comprising a housing assembly (1) and a main control mechanism (2), characterized in that: The housing assembly (1) comprises a storage box (101), a front cover plate (102) and a front cover film (103); The front cover plate (102) is arranged on one side of the storage box (101), the front cover film (103) is adhered to one side of the front cover plate (102), and the main control mechanism (2) is arranged inside the storage box (101); the main control mechanism (2) comprises a main control board (201), a plurality of MODBUS input boards (202), a plurality of voltage / current input boards (203), a plurality of voltage / current output boards (204), a plurality of auxiliary power supply interfaces (eight channels) (205), a plurality of SPDT relay control interfaces (eight channels) (206), a MODBUS communication interface (207), and an auxiliary power supply voltage selection interface (208); The main control board (201) is installed on one side of the inner wall of the storage box (101); a plurality of MODBUS input boards (202), voltage / current input boards (203) and voltage / current output boards (204) are plugged into the top of one side of the main control board (201); a plurality of auxiliary power supply interfaces - eight-way (205) and SPDT relay control interfaces - eight-way (206) are installed on the bottom of one side of the main control board (201); the MODBUS communication interface (207) is installed on one side of the main control board (201); and the auxiliary power supply voltage selection interface (208) is installed on the other side of the main control board (201).
2. The multi-parameter water quality online analyzer controller according to claim 1, characterized in that: Four front cover fixing bolts (5) are symmetrically slidably connected to the inner side wall of the front cover plate (102), and one end of the four front cover fixing bolts (5) is threadedly connected to the inside of the storage box (101).
3. The multi-parameter water quality online analyzer controller according to claim 1, characterized in that: An LCD screen (3) is installed in the middle of one side of the front cover plate (102) close to the storage box (101), and a touch screen interface (6) is installed on the top of one side of the main control board (201), and the LCD screen (3) and the touch screen interface (6) are connected by wire coupling.
4. The multi-parameter water quality online analyzer controller according to claim 1, characterized in that: A buzzer (7), a mainboard reset button (8) and a mainboard battery (9) are installed on the top of one side of the main control board (201), and a mainboard fuse (10) and a mainboard power supply (11) are installed on the bottom of one side of the main control board (201).
5. The multi-parameter water quality online analyzer controller according to claim 1, characterized in that: A plurality of waterproof nozzles (4) are installed at the bottom of the inner wall of the storage box (101).
6. The multi-parameter water quality online analyzer controller according to claim 1, characterized in that: The communication mode of the main control mechanism (2) includes but is not limited to current communication, voltage communication and MODBUS communication.