Motor array control system for transmission belt

Abstract

The utility model provides a motor array control system used for a transmission band, comprising a mainboard, a CPU board, an IO board, four motor driving boards, an AC380V external power supply and a voltage reduction module, the CPU board, the IO board and the four motor driving boards are all connected with the mainboard, the mainboard is provided with a voltage detection module, a current detection module, a temperature detection circuit, a phase detection circuit, a pulse shaping circuit, a 595 serial-to-parallel circuit, a filter circuit, a zero cross detection circuit, an indication circuit, a 595 serial-to-parallel circuit and a fan driving circuit, and the motor driving board is provided with a voltage driving circuit, a temperature test circuit and an alarm circuit. The IO board is provided with eight digital quantity input interfaces, 4-20 analog quantity input acquisition interfaces, eight dry node digital quantity output interfaces and eight photoelectric coupling transistor digital quantity output interfaces. According to the utility model, a modular design is adopted, the number of cables can be reduced, wiring time is reduced, cost is saved, and expansibility is strong.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic control, and particularly relates to a control system for a conveyor belt motor array. Background Art

[0002] During the process of deploying and retrieving subsea nodes, some specialized equipment and tools are usually used, such as node storage and charging equipment, transmission equipment, cable deploying and retrieving equipment, cable arranging equipment, etc. The storage of nodes during the deploying and retrieving process requires dedicated deploying and retrieving equipment. When controlling and managing the transmission equipment, devices such as relays, contactors, motor protectors, and PLCs are generally used to build a logic circuit to achieve the operation control of the equipment. Usually, before using the control circuit, different specifications of power, signal, data, and other cables need to be purchased and laid during the installation of the ship. Moreover, the number of required cables is huge, the manual wiring takes a long time, and the later maintenance is complex. Summary of the Invention

[0003] In view of this, the utility model aims to overcome the above deficiencies in the prior art and proposes a control system for a conveyor belt motor array, which is used for centralized control of the transmission equipment of subsea nodes.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A control system for a conveyor belt motor array includes a main board, a CPU board, an IO board, four motor drive boards, an AC380V external power supply, and a step-down module. The CPU board, the IO board, and the four motor drive boards are all connected to the main board. The main board is provided with a voltage detection module, a current detection module, a temperature detection circuit, a phase detection circuit, a pulse shaping circuit, a 595 serial-to-parallel circuit, a filtering circuit, a zero-crossing detection circuit, an indication circuit, and a fan drive circuit. The motor drive board is provided with a voltage drive circuit, a temperature test circuit, and an alarm circuit. The IO board is a multi-functional input / output board, which is provided with 8 digital input interfaces, 4-20 analog input acquisition interfaces, 8 dry contact digital output interfaces, and 8 opto-coupled transistor digital output interfaces. The CPU board is provided with a single-chip microcomputer. The output end of the step-down module is electrically connected to the single-chip microcomputer, the motor drive board, and the I / O board. The output end of the single-chip microcomputer is electrically connected to a background remote monitoring host.

[0006] Further, the single-chip microcomputer adopts the GD32F427ZGT6 high-speed large-capacity 32-bit multi-functional single-chip microcomputer, which includes a crystal oscillator circuit, a 3.3V filtering circuit, a program downloading circuit and a reset circuit. The output ends of the crystal oscillator circuit, the 3.3V filtering circuit, the program downloading circuit and the reset circuit are respectively electrically connected to the input end of the 32-bit single-chip microcomputer. The output end of the 3.3V filtering circuit is also electrically connected to the input ends of the program downloading circuit and the reset circuit.

[0007] Further, the single-chip microcomputer is electrically connected to the background monitoring host through a 485 interface chip interface or a network chip interface. Among them, the 485 communication interface is electrically connected to the PA8, PA9, and PA10 interfaces of the single-chip microcomputer, and the network interface module is respectively electrically connected to the PA1, PA2, PC1, PC4, PC5, PD3, PG11, PG13, PG14, and PA7 interfaces of the single-chip microcomputer.

[0008] Further, the 8-way digital input interfaces of the I / O board are respectively connected to the PE7, PE8, PE9, PE10, PE11, PE12, PE13, and PE14 interfaces of the single-chip microcomputer. The 8-way dry contact digital output interfaces are respectively driven by the PA12, PF9, and PF8 of the single-chip microcomputer and are electrically connected to the 74HC595 serial-to-parallel drive interface. The 8-way optocoupler transistor digital output interfaces are respectively connected to the PD13, PD14, PD15, PG2, PG3, PG4, PG5, and PG6 interfaces of the single-chip microcomputer.

[0009] Further, the buck module is an AC 380V to DC5V and then to DC3.3V module, which provides a DC3.3V power supply.

[0010] Further, an encryption dog module is also provided on the CPU board, and the encryption dog module is fixed on the CPU board through screws and copper posts.

[0011] Compared with the prior art, the belt motor array control system of the present invention has the following advantages:

[0012] The present invention adopts a modular design, realizes the centralized control of the conveyor belt, can reduce the number of cables, reduce the wiring time, save costs, and has strong scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0014] Figure 1 is a schematic diagram of the principle of a belt motor array control system of the present invention;

[0015] Figure 2 This is the single-chip microcomputer circuit diagram of the present utility model;

[0016] Figure 3 This is the IP address DIP switch circuit diagram of the present utility model;

[0017] Figure 4 This is the dongle circuit diagram of the present utility model;

[0018] Figure 5 This is the schematic diagram of the IO board circuit of the present utility model;

[0019] Figure 6 This is the schematic diagram of the voltage drive circuit of the present utility model;

[0020] Figure 7 This is the schematic diagram of the alarm circuit of the present utility model;

[0021] Figure 8 This is the schematic diagram of the temperature test circuit of the present utility model;

[0022] Figure 9 This is the phase detection circuit diagram of the present utility model;

[0023] Figure 10 This is the schematic diagram of the pulse shaping circuit of the present utility model;

[0024] Figure 11 This is the schematic diagram of the 595 serial-to-parallel circuit of the present utility model;

[0025] Figure 12 This is the schematic diagram of the filter circuit of the present utility model;

[0026] Figure 13 This is the schematic diagram of the zero-crossing detection circuit of the present utility model;

[0027] Figure 14 This is the schematic diagram of the indication circuit of the present utility model;

[0028] Figure 15 This is the schematic diagram of the fan drive circuit of the present utility model;

[0029] Figure 16 This is the schematic diagram of the temperature detection circuit of the present utility model. Specific embodiments

[0030] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0033] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0034] As Figure 1 shown, the present utility model provides a control system for a conveyor belt motor array, including a main board, a CPU board, an IO board, four motor driver boards, an AC380V external power supply, and a step-down module. The CPU board, the IO board, and the four motor driver boards are all connected to the main board. The main board is provided with a voltage detection module, a current detection module, a temperature detection circuit, a three-phase voltage loss-of-phase detection module, a pulse shaping circuit, a 595 serial-to-parallel circuit, a filtering circuit, a zero-crossing detection circuit, an indication circuit, and a fan drive circuit. The motor driver board is provided with a voltage drive circuit, a temperature test circuit, and an alarm circuit. The IO board is a multi-functional input / output board, provided with 8 digital input interfaces, 4 - 20 analog input acquisition interfaces, 8 dry contact digital output interfaces, and 8 opto-coupled transistor digital output interfaces. The CPU board is provided with a single-chip microcomputer. The output end of the step-down module is electrically connected to the single-chip microcomputer, the motor driver board, and the I / O board. The output end of the single-chip microcomputer is electrically connected to a background remote monitoring host.

[0035] As Figure 2As shown, the single-chip microcomputer uses the GD32F427ZGT6, a high-speed, large-capacity 32-bit multifunctional single-chip microcomputer, which includes a crystal oscillator circuit, a 3.3V filter circuit, a program download circuit, and a reset circuit. The output terminals of the crystal oscillator circuit, the 3.3V filter circuit, the program download circuit, and the reset circuit are respectively electrically connected to the input terminals of the 32-bit single-chip microcomputer. The output terminal of the 3.3V filter circuit is also electrically connected to the input terminals of the program download circuit and the reset circuit.

[0036] As Figure 3 shown, this system uses a flexible IP address DIP switch, which can flexibly network multiple units of the same series according to the IP address. In the form of 485 and network networking, a larger and more powerful large-line drive system is formed. SW2 can be used to flexibly set the local drive and remote drive functions. The local drive is further divided into functions such as driving the motor forward and reverse. The specific settings are as follows:

[0037] SW2: K1 K2 mode switch

[0038] 0 0 ---- IO forward mode

[0039] 0 1 ---- IO reverse mode

[0040] 1 0 ---- RS485 mode

[0041] 1 1 ---- Network port mode.

[0042] As Figure 4 shown, this system uses a dongle as the system key. The dongle module is fixed on the CPU board through screws and copper posts, which is firm and shock-resistant and can meet the harsh environment on the ship.

[0043] Specifically, the single-chip microcomputer is electrically connected to the background monitoring host through a 485 interface chip interface or a network chip interface. Among them, the 485 communication interface is electrically connected to the PA8, PA9, and PA10 interfaces of the single-chip microcomputer, and the network port module is respectively electrically connected to the PA1, PA2, PC1, PC4, PC5, PD3, PG11, PG13, PG14, and PA7 interfaces of the single-chip microcomputer.

[0044] Specifically, the 8-channel digital input interfaces of the I / O board are respectively connected to the PE7, PE8, PE9, PE10, PE11, PE12, PE13, and PE14 interfaces of the single-chip microcomputer. The 8-channel dry contact digital output interfaces are respectively driven by the PA12, PF9, and PF8 of the single-chip microcomputer through a 74HC595 serial-to-parallel drive interface. The 8-channel optocoupler transistor digital output interfaces are respectively connected to the PD13, PD14, PD15, PG2, PG3, PG4, PG5, and PG6 interfaces of the single-chip microcomputer.

[0045] As shown Figure 5 in the figure, an analog acquisition and conversion circuit is provided on the IO board: This circuit uses an advanced digital circuit AD acquisition chip ADS1115. The system uses a DC-DC isolated power supply B2405S as the system isolated power supply, which completely isolates the analog quantity acquisition of the system from the digital circuit part, avoids the interference of digital signals to analog signals, improves the acquisition accuracy and the stability of the system. In actual tests, the full-scale input can reach an accuracy of 4096. At the digital output end, the I2C uses an ISO1541DR isolation chip, which perfectly isolates the AD conversion chip from the single-chip microcomputer, further stabilizes the working environment of the system, makes the system work stably and reliably, and makes the acquisition of 2-channel 20mA loop current and 2-channel 10V voltage more accurate and convenient. Without any hardware switching, the input current and voltage can be directly acquired to obtain highly reliable and stable acquisition data. The acquisition circuit has a high input impedance and has very little influence on the load, which is convenient for perfect application in various occasions. And light-emitting diodes AD1 and AD2 are added as signal indicators. When there is no signal input, the single-chip microcomputer does not receive an external input signal, the pins of the single-chip microcomputer are not driven, and the indicator lights do not light up. When there is an input current in the range of 4 - 20mA, the single-chip microcomputer receives the corresponding I2C data. After analyzing that the value is within the specified range, the single-chip microcomputer drives the corresponding pins at this time, making the AD1 or AD2 lights light up, indicating that the system has received a 4 - 20mA current, which is convenient for on-site debugging personnel to see at a glance and improves work efficiency.

[0046] Specifically, the buck module is an AC 380V to DC5V and then converted to DC3.3V module, which provides a DC3.3V power supply.

[0047] The motor drive board of the present utility model is a high-voltage output board for driving the output of the motor. It is driven by a three-phase solid-state relay. The circuit board has a temperature test module, and a closed-loop feedback system that feeds back the three-phase voltage output status to the single-chip microcomputer, enabling the single-chip microcomputer to timely collect the working status of the motor drive board. In addition, there are functions such as high motor temperature alarm and belt break alarm. As Figure 6 shown in the figure is a 380V voltage drive circuit, Figure 7 is the input for the high motor temperature alarm and the input circuit for the belt transmission break alarm, Figure 8 is the motor drive board temperature test circuit.

[0048] The main board of the present utility model is the core board connecting each branch unit. There are circuits for inputting 380V voltage, current detection, temperature detection, three-phase voltage phase loss detection circuit. The 40106 chip is responsible for waveform shaping function, 380V input anti-interference circuit, U-phase and its V-phase transformation module to realize the forward and reverse rotation of the motor. By using the voltage and current detection module, the single-chip microcomputer can detect the magnitude of the input voltage and current in real time, and collect the temperature in real time according to the temperature acquisition module NTS1001. There is a temperature acquisition module NTS1001 on the main board of this system to collect the temperature in real time, and each of the 4 motor drive boards has a temperature acquisition module NTS1001 to collect the temperature in real time. The phase detection circuit is as Figure 9 shown, the pulse shaping circuit is as Figure 10 shown, the 595 serial-to-parallel circuit is as Figure 11 shown, the 380V AC power supply filtering circuit is as Figure 12 shown, the zero-crossing detection circuit is as Figure 13 shown, the power supply working, warning and other indication circuits, the 24V input reverse connection prevention circuit is as Figure 14 shown, the fan drive circuit is as Figure 15 shown, the temperature detection circuit is as Figure 16 shown.

[0049] After the three-phase AC voltage is input into this system, the voltage and current acquisition modules obtain the corresponding voltage and current values and transmit them to the single-chip microcomputer. The temperature on-site and the temperature acquisition values of each board are also transmitted to the single-chip microcomputer. The single-chip microcomputer analyzes and calculates the input parameters, and then analyzes and executes according to the monitoring instructions transmitted by the upper computer, and returns the detection data to the upper computer. This system realizes the forward and reverse rotation of the motor through the transformation of the U and V phases of the three-phase power supply, and uses the high-voltage solid-state relay of the motor drive board to drive the three-phase motor, thus realizing the control of the motor direction and rotation of the whole system, and operating safely, efficiently and normally.

[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A control system for a conveyor belt motor array, characterized in that: The invention comprises a mainboard, a CPU board, an IO board, four motor drive boards, an AC380V external power supply, and a step-down module. The CPU board, the IO board, and the four motor drive boards are all connected to the mainboard. The mainboard is provided with a voltage detection module, a current detection module, a temperature detection circuit, a phase detection circuit, a pulse shaping circuit, a 595 serial-to-parallel circuit, a filtering circuit, a zero-crossing detection circuit, an indication circuit, a 595 serial-to-parallel circuit, and a fan drive circuit. The motor drive board is provided with a voltage drive circuit, a temperature test circuit, and an alarm circuit. The IO board is a multifunctional input and output board, provided with an 8-way digital quantity input interface, a 4-20 analog quantity input acquisition interface, an 8-way dry node digital quantity output interface, and an 8-way photoelectric coupling transistor digital quantity output interface. A single-chip microcomputer is provided on the CPU board. The output end of the step-down module is electrically connected to the single-chip microcomputer, the motor drive board, and the I / O board. The output end of the single-chip microcomputer is electrically connected to a background remote monitoring host.

2. A control system for a conveyor belt motor array according to claim 1, characterized in that: The single-chip microcomputer adopts the GD32F427ZGT6 high-speed, large-capacity, 32-bit multifunctional single-chip microcomputer, including a crystal oscillator circuit, a 3.3V filter circuit, a program download circuit and a reset circuit. The output ends of the crystal oscillator circuit, the 3.3V filter circuit, the program download circuit and the reset circuit are electrically connected to the input ends of the 32-bit single-chip microcomputer respectively, and the output end of the 3.3V filter circuit is also electrically connected to the input ends of the program download circuit and the reset circuit.

3. A control system for a conveyor belt motor array according to claim 2, characterized in that: The single-chip microcomputer is electrically connected to the background monitoring host through a 485 interface chip interface or a network chip interface, wherein the 485 communication interface is electrically connected to the PA8, PA9, and PA10 interfaces of the single-chip microcomputer, and the network port module is electrically connected to the PA1, PA2, PC1, PC4, PC5, PD3, PG11, PG13, PG14, and PA7 interfaces of the single-chip microcomputer respectively.

4. A control system for a conveyor belt motor array according to claim 2, characterized in that: The 8-way digital quantity input interface of the I / O board is respectively electrically connected to the PE7, PE8, PE9, PE10, PE11, PE12, PE13, and PE14 interfaces of the single-chip microcomputer; the 8-way dry node digital quantity output interface is respectively electrically connected to the 74HC595 serial-to-parallel drive interface driven by PA12, PF9, and PF8 of the single-chip microcomputer; and the 8-way photocoupler transistor digital quantity output interface is respectively electrically connected to the PD13, PD14, PD15, PG2, PG3, PG4, PG5, and PG6 interfaces of the single-chip microcomputer.

5. The control system for a conveyor belt motor array according to claim 1, characterized in that: The step-down module converts AC 380V to DC5V and then to DC3.3V, providing DC3.3V power supply.

6. A control system for a conveyor belt motor array according to claim 1, characterized in that: The CPU board is also provided with an encryption dog module, and the encryption dog module is fixed on the CPU board by screws and copper columns.

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