CN202548619U

CN202548619U - Multi-motor monitoring system based on CAN (Controller Area Network) bus

Info

Publication number: CN202548619U
Application number: CN2012201128189U
Authority: CN
Inventors: 张永春
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2012-03-22
Filing date: 2012-03-22
Publication date: 2012-11-21
Anticipated expiration: 2022-03-22

Abstract

The utility model provides a multi-motor monitoring system based on a CAN (Control Area Network) bus. The multi-motor monitoring system comprises a PC (Personal Computer), the CAN bus, a CAN adapter card, a plurality of motors, a plurality of PLCs (Programmable Logic Controllers) equal to the motors, and a processor module, wherein the PC is electrically connected with the CAN bus through the CAN adapter card; the PLCs are electrically connected with the corresponding motors; the processor module comprises a microprocessor, a signal acquisition circuit, a CAN interface circuit, a serial port circuit, a display circuit and a power supply circuit; the power supply circuit supplies power for the microprocessor; the microprocessor is electrically connected with the CAN bus through the CAN interface circuit, electrically connected with the motors through the signal acquisition circuit, and further electrically connected with the PLCs through the serial port circuit; and the display circuit is electrically connected with the microprocessor. The multi-motor monitoring system provided by the utility model performs long-distance, real-time, high-reliability control on the plurality of motors through one PC, and is expansible, high in efficiency and low in cost.

Description

A kind of many motor monitorings system based on the CAN bus

Technical field

The utility model relates to the electric machines control technology field, is specifically related to the many motor monitorings system based on the CAN bus.

Background technology

Fast development along with industrial technology; Motor has obtained using widely; But the rational solution of neither one is gone back in the control long-range, efficient, one for the motor of the One's name is legion in the large scale system; That traditional multi-motor control system is applicable to is less demanding, simple relatively, occasion that motor distributes and relatively concentrates; And require than higher, long transmission distance, the fast use occasion of having relatively high expectations of transmission speed for real-time, reliability and extensibility, traditional multi-motor control system can not adapt to requirement, does not reach the desired control effect.

The utility model content

The purpose of the utility model is: multi-motor control system real-time and extensibility are strong in the solution prior art, reliability is not high, transmission range closely reaches transmission speed and waits problem slowly, provide a kind of function comprehensive, the intelligent and higher many motor monitorings system based on the CAN bus of networked degree.

The technical scheme that realizes the utility model purpose is: a kind of many motor monitorings system based on the CAN bus; Comprise PC, CAN bus, CAN adapter, some the motors that are used for signal and show and control usefulness and several PLC controllers that are complementary with motor platform number, described CAN bus is electrically connected with PC through the CAN adapter; The PLC controller is electrically connected with corresponding motor; Its design feature is: also comprise several processor modules identical with motor platform number, processor module comprises microprocessor, signal acquisition circuit, CAN interface circuit, serial port circuit, display circuit and power circuit; Power circuit provides working power to microprocessor; Microprocessor is electrically connected with corresponding motor through signal acquisition circuit; Microprocessor is electrically connected with the relevant PLC controller through serial port circuit; Microprocessor inserts the CAN bus through the CAN interface circuit; Display circuit and microprocessor are electrically connected.

The utlity model has positive effect: (1) through employing have good communication speed, transmitting range is far away, reliability is high; The strong CAN bus of antijamming capability is as connecting tie; Implement control through PC; Motor platform number to controlling can require to decide according to reality, and native system has good extendability.(2) can realize multiple electric motors is implemented remote, real-time, High-reliability Control through PC, efficient be high, and cost is low.

Description of drawings

Fig. 1 is the system chart of the utility model based on many motor monitorings system of CAN bus.

Fig. 2 is the structured flowchart of the processor module among Fig. 1.

Reference numeral in the above-mentioned accompanying drawing is following:

PC 1, CAN bus 2, CAN adapter 3, motor 4, PLC controller 5,

Processor module 6, microprocessor 61, signal acquisition circuit 62, CAN interface circuit 63, serial port circuit 64, display circuit 65, power circuit 66.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:

(embodiment 1)

As shown in Figure 1, the many motor monitorings system based on the CAN bus of present embodiment comprises PC 1, CAN bus 2, CAN adapter 3, motor 4, PLC controller 5 and processor module 6.

CAN bus 2 is electrically connected with PC 1 through CAN adapter 3; Processor module 6 is electrically connected with motor 4, PLC controller 5 and CAN bus 2 respectively; PLC controller 5 is electrically connected with motor 4.

The motor 4 and the PLC controller 5 that is electrically connected that matches with it constitute one group of controlled electric motor units with processor module 6, can set and can according to circumstances change according to actual needs with the number of the controlled electric motor units of spline structure and reduce or increase expansion easily.

The output terminal of every PLC controller 5 is connected with corresponding motor 4, start, shutdown, the emergency stop of the connected motor 4 of PLC controller 5 controls.

Processor module 6 comprises microprocessor 61, signal acquisition circuit 62, CAN interface circuit 63, serial port circuit 64, display circuit 65 and power circuit 66.Power circuit 66 provides working power for microprocessor 61; Microprocessor 61 is electrically connected with CAN bus 2 through CAN interface circuit 63; Microprocessor 61 is electrically connected with motor 4 in the same controlled unit through signal acquisition circuit 62; Microprocessor 61 is electrically connected with PLC controller 5 through serial port circuit 64, and display circuit 65 is electrically connected with microprocessor 61.

Signal acquisition circuit 62 is gathered parameters such as the three-phase voltage, three-phase current, motor temperature of corresponding motor 4, and sends various parameters to microprocessor 61.

Display circuit 65 shows corresponding motor 4 current working state, is convenient to the maintenance personal understands motor 4 fast when maintenance duty.

The model that microprocessor 61 preferred Microchip Technology (Microchip) in the present embodiment in the processor module 6 produce is the single-chip microcomputer of PIC18F25K80.The model that CAN adapter 3 preferred Shanghai general wound Electronics Equipment Co., Ltd produces is a CANUSB-II double-path intelligent CAN interface card.The model that PLC controller 5 preferred Mitsubishi Electric robotization (Shanghai) Co., Ltd. produce is a FX2N series of PLC controller.

The dynamic duty process based on many motor monitorings system of CAN bus of present embodiment is following: the signal acquisition circuit 62 of processing module 6 passes to microprocessor 61 with voltage, electric current and the working temperature signal of the motor that collects; Microprocessor 61 with the various parameter acquisitions of corresponding motor 4 and after treatment; Insert CAN bus 2 through CAN interface circuit 63 and send PC 1 to; Terminal software on the PC 1 will transmit the data presentation of coming and come out to supply the user job personnel to analyze; The staff sends the Electric Machine Control command signal as the case may be; This command signal is delivered to CAN bus 2 through CAN adapter 3 and sends corresponding processor module 6 again to; This processing module 6 sends the control signal that receives to PLC controller 5 through serial port circuit 64, and PLC controller 5 is implemented control according to the control signal of being accepted to corresponding motor 4.Display circuit 65 shows the duty of motor in real time.

In sum; Many motor monitorings system employing based on the CAN bus of the utility model has good communication speed, transmitting range is far away, reliability is high; The CAN bus that anti-interference is high is come the Long-distance Control multiple electric motors; Can realize control, and have good extendability, can be widely used in the large-scale motor monitoring system real-time, reliable, the remote and fast speed of multiple electric motors.

Above embodiment is the explanation to the embodiment of the utility model; But not to the restriction of the utility model; The technician in relevant technologies field is under the situation of spirit that does not break away from the utility model and scope; Can also make various conversion and variation and obtain the corresponding technical scheme that is equal to, so all technical schemes that are equal to all should be included into the scope of patent protection of the utility model.

Claims

1. many motor monitorings system based on the CAN bus; Comprise that being used for signal shows and PC (1), CAN bus (2), CAN adapter (3), some motors (4) and several PLC controllers (5) identical with motor platform number of control usefulness that described CAN bus (2) is electrically connected with PC (1) through CAN adapter (3); PLC controller (5) is electrically connected with corresponding motor (4); It is characterized in that: also comprise several processor modules (6) identical with motor platform number, described processor module (6) comprises microprocessor (61), signal acquisition circuit (62), CAN interface circuit (63), serial port circuit (64), display circuit (65) and power circuit (66); Described power circuit (66) provides working power for microprocessor (61); Described microprocessor (61) is electrically connected with corresponding motor (4) through signal acquisition circuit (62); Described microprocessor (61) is electrically connected with relevant PLC controller (5) through serial port circuit (64); Described microprocessor (61) inserts CAN bus (2) through CAN interface circuit (63); Described display circuit (65) and microprocessor (61) are electrically connected.