CN214474976U - High-compatibility servo motor communication card - Google Patents
High-compatibility servo motor communication card Download PDFInfo
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- CN214474976U CN214474976U CN202021737767.XU CN202021737767U CN214474976U CN 214474976 U CN214474976 U CN 214474976U CN 202021737767 U CN202021737767 U CN 202021737767U CN 214474976 U CN214474976 U CN 214474976U
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Abstract
A high-compatibility servo motor communication card is externally connected with at least one driver for controlling a servo motor, and comprises a processor module, a storage circuit module, a communication interface module, a power supply interface module and a main control socket, wherein a plurality of different data transmission protocols for transmitting control data commands to the driver are stored in the storage circuit module, by arranging that several different sets of data transfer protocols for transferring control data commands to the driver are stored in the memory circuit module, the data transmission protocol is a data transmission protocol used by servo motors of manufacturers of different servo motor brands and translation instructions of control data of different brands, therefore, after the servo motors of different manufacturers and different models are replaced, the control instruction can still output a control signal to the servo motors through the communication card, and the servo motors of different manufacturers and different models can be compatibly used.
Description
Technical Field
The utility model relates to a communication card especially indicates a high compatible servo motor communication card.
Background
The servo motor is an engine which controls mechanical elements to operate in a servo system, and is an auxiliary motor indirect speed changing device.
The servo motor can control the speed and position accuracy accurately, and can convert the voltage signal into torque and rotating speed to drive a control object. The rotation speed of the rotor of the servo motor is controlled by an input signal and can quickly respond, the servo motor is used as an actuating element in an automatic control system, has the characteristics of small electromechanical time constant, high linearity, starting voltage and the like, and can convert a received electric signal into angular displacement or angular speed on a motor shaft for output. The servo motor is divided into two categories of direct current servo motors and alternating current servo motors, and is mainly characterized in that when the signal voltage is zero, the signal voltage has no autorotation phenomenon, and the rotating speed is reduced at a constant speed along with the increase of the torque.
At present, when a servo motor used for a long time is damaged and needs to be replaced, the same type of the same manufacturer as the previously used servo motor cannot be purchased for some reasons, however, the channels for transmitting communication information of the servo motors of different manufacturers and different types are different, so that the communication drivers of the manufacturers and the manufacturers cannot be compatible with each other, because the control data translation instructions of different manufacturers are different, the data transmission protocols are different, so that the adaptive data transmission protocols are lacked after the different servo motors are replaced, the control instructions cannot be translated and transmitted smoothly, and therefore the control signals cannot be output to the newly replaced servo motor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high compatible servo motor communication card, its main aim at overcome the servo motor back communication card of changing other models compatible use, can't carry out output control signal's defect to the servo motor of new change after having changed different servo motor.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a high-compatibility servo motor communication card is externally connected with at least one driver used for controlling a servo motor and comprises a processor module, a storage circuit module electrically connected with the processor module, a plurality of communication interface modules electrically connected with the processor module and used for being connected with the driver, a power supply interface module electrically connected with the processor module and a main control socket electrically connected with the processor module, wherein one end of each communication interface module is electrically connected with the processor module, the other end of each communication interface module is connected with the driver, and a plurality of different groups of data transmission protocols used for transmitting control data commands to the driver are stored in the storage circuit module.
Furthermore, the processor module comprises a processor chip, a plurality of driving chips electrically connected with the processor chip and a master control socket electrically connected with the processor chip.
Furthermore, the communication interface module comprises at least two communication interfaces and a communication circuit matched with the communication interfaces, one end of the communication circuit is electrically connected with the communication circuit, and the other end of the communication circuit is electrically connected with the processor module.
Further, the communication interface comprises an RS485 communication interface and a CAN bus communication interface, the communication circuit comprises an RS485 communication circuit and a CAN bus communication circuit, the RS485 communication interface is electrically connected with the RS485 communication circuit, and the CAN bus communication interface is electrically connected with the CAN bus communication circuit.
The CAN bus communication circuit and the RS485 communication circuit are respectively connected with the processor module through a wired connection, and the selection switch circuit is respectively connected with the CAN bus communication circuit and the RS485 communication circuit through a wired connection.
Furthermore, the system also comprises an optical fiber communication module electrically connected with the processor module.
Compared with the prior art, the utility model discloses the beneficial effect who produces lies in:
the utility model has the advantages of simple structure, therefore, the clothes hanger is strong in practicability, through setting up the data transmission agreement that the storage has a plurality of different data transmission agreement that are used for transmitting the control data order to the driver in the storage circuit module, this data transmission agreement is the data transmission agreement that a plurality of different servo motor brand firm servo motor used and the translation instruction of the control data of a plurality of different brands, thereby realize that control instruction still can be through the communication card to servo motor output control signal after the servo motor of the different models of different producers is changed, realize the compatible use to the different model servo motor of different producers.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a block diagram of a processor module.
Fig. 3 is a block diagram of a communication interface module.
Fig. 4 is a circuit schematic diagram of an RS485 communication circuit.
Fig. 5 is a schematic circuit diagram of a CAN communication circuit.
Fig. 6 is a circuit schematic of the memory circuit block.
Fig. 7 is a circuit schematic of a power supply module.
FIG. 8 is a schematic circuit diagram of a processor chip (chip model STN32F103 VET).
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Referring to fig. 1, 2 and 3, a highly compatible servo motor communication card is externally connected with at least one driver for controlling a servo motor by using a cable, and comprises a processor module, a storage circuit module electrically connected with the processor module, a plurality of communication interface modules electrically connected with the processor module and used for connecting the driver, a power supply interface module electrically connected with the processor module, optical fiber communication modules (the optical fiber communication modules are 0825PHILIPPNEST-1521Z and 1120 PHILIPPNESR-2521Z) electrically connected with the processor module and a selection switch circuit.
The processor module, the storage circuit module, the communication interface module, the power interface module, the optical fiber communication module and the selection switch circuit are all arranged on a Printed Circuit Board (PCB).
The processor module comprises a processor chip, a plurality of driving chips electrically connected with the processor chip and a main control socket electrically connected with the processor chip, wherein the main control socket is externally connected with a main control device for sending control commands to the driver through a connecting cable, the model of the processor chip is STM32F405 or STN32F103VET (refer to figure 8), and the model of the driving chip is ULN2003 AG. The number of the driving chips is matched with the number of the communication interface modules.
The communication interface module is respectively electrically connected with the processor module and the driver, a plurality of different groups of data transmission protocols used for transmitting control data commands to the driver are stored in the storage circuit module, and the data transmission protocols are data transmission protocols used by servo motors of manufacturers of different servo motor brands and translation instructions of control data of different brands.
One end of the driving chip is electrically connected with the main touch control module, and the other end of the driving chip is electrically connected with the communication interface module.
The communication interface module comprises at least two communication interfaces and a communication circuit matched with the communication interfaces, one end of the communication circuit is electrically connected with the communication circuit, the other end of the communication circuit is electrically connected with the processor module, the communication interfaces comprise at least two types of communication interfaces which adopt RS485 communication interfaces and CAN bus communication interfaces, the communication circuit comprises at least two communication circuits which adopt at least two of RS485 communication circuits and CAN bus communication circuits, the RS485 communication interfaces are electrically connected with the RS485 communication circuits, and the CAN bus communication interfaces are electrically connected with the CAN bus communication circuits.
The selection switch circuit is respectively and electrically connected with the CAN communication circuit and the RS485 communication circuit and is used for switching and selecting the CAN communication circuit or the RS485 communication circuit to be communicated with the processor module, and the selection switch circuit CAN be adaptively selected according to a communication protocol applicable to an external driver.
The specific selection switch in this embodiment may be a dial switch, and specifically, the dial switch may be a rotary dial switch, a horizontal dial switch, or a push-button dial switch. It should be noted that, in practical applications, the selection switch may also be a switch in other forms, and is not limited to a toggle switch, which is a form of switch, and may be flexibly adjusted according to a specific application scenario, and the toggle switch is used to facilitate observation and determination of the currently selected communication mode.
Referring to fig. 4, the RS485 communication circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a connector P2, and a communication interface chip, where the communication interface chip includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin, and an eighth pin; the first pin of the communication interface chip is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with a main control circuit, the second pin of the communication interface chip is respectively electrically connected with the third pin of the communication interface chip and one end of a resistor R2, the other end of the resistor R2 is grounded, the fourth pin of the communication interface chip is electrically connected with one end of a resistor R3, the other end of a resistor R3 is electrically connected with the main control circuit, the fifth pin of the communication interface chip is grounded, the sixth pin of the communication interface chip is respectively electrically connected with one end of a resistor R6, one end of a resistor R5 and the second pin of a connector P2, the seventh pin of the communication interface chip is respectively connected with the other end of a resistor R5, one end of the resistor R4 is electrically connected with the first pin of the connector P2, the eighth pin of the communication interface chip and the other end of the resistor R6 are both electrically connected with the power circuit, and the other end of the resistor R4 is grounded.
The model of the communication interface chip is MAX485, when a signal is transmitted, a signal is input from the other end of the resistor R3 to the sixth pin of the communication interface chip and the seventh pin of the communication interface chip, a differential signal is obtained by the sixth pin of the communication interface chip and the seventh pin of the communication interface chip, the resistor R4 and the resistor R6 are pull-up and pull-down resistors, and the resistor R5 is a load resistor of the sixth pin of the communication interface chip and the seventh pin of the communication interface chip, so that the anti-interference capability is improved.
The resistance R1 (resistance value 1K Ω), the resistance R2 (resistance value 4.7K Ω), the resistance R3 (resistance value 1K Ω), the resistance R4 (resistance value 4.7K Ω), the resistance R5 (resistance value 120 Ω), the resistance R6 (resistance value 4.7K Ω), and the connector P2 model is DG 301-2P.
A low frequency power transceiver for RS-485 communication may also be provided.
Referring to fig. 5, the CAN communication circuit includes a resistor R47, a capacitor C28, a connector P3, and a CAN communication chip.
The CAN communication chip comprises a first pin, a second pin, a third pin, a fourth pin and a fifth pin, and the connector P3 comprises a first pin and a second pin.
The first pin of CAN communication chip and the fifth pin of CAN communication chip all ground connection, the second pin of CAN communication chip is connected with electric capacity C28's one end electricity and the second pin of CAN communication chip and the one end of electric capacity C28 all are connected with power supply circuit electricity, electric capacity C28's other end ground connection, the fourth pin of CAN communication chip is connected with the one end of resistance R47 and the first pin electricity of connector P3 respectively, the fifth pin of CAN communication chip is connected with the other end of resistance R47 and the second pin electricity of connector P3 respectively.
The CAN communication circuit comprises a resistor R47 (the resistance value is 120 omega), a capacitor C28 (the capacitance value is 0.1uF), a connector P3 (the model is DG301-2P) and a CAN communication chip (the model is TJA1050), the CAN communication chip comprises a first pin, a second pin, a third pin, a fourth pin and a fifth pin, and the connector P3 comprises a first pin and a second pin.
The first pin of CAN communication chip and the fifth pin of CAN communication chip all ground connection, the second pin of CAN communication chip is connected with electric capacity C28's one end electricity and the second pin of CAN communication chip and the one end of electric capacity C28 all are connected with power supply circuit 1 electricity, electric capacity C28's other end ground connection, the fourth pin of CAN communication chip is connected with the one end of resistance R47 and the first pin electricity of connector P3 respectively, the fifth pin of CAN communication chip is connected with the other end of resistance R47 and the second pin electricity of connector P3 respectively.
The resistor R47, the capacitor C28, the connector P3 and the CAN communication chip form a CAN communication circuit, and the CAN communication circuit plays a role in monitoring and resetting the circuit.
Referring to fig. 6, the memory circuit module includes a resistor R7, a resistor R8, a capacitor C3, and a charged erasable programmable rom, where the charged erasable programmable rom includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin, and an eighth pin; the first pin of the electrified erasable programmable read-only memory, the second pin of the electrified erasable programmable read-only memory, the third pin of the electrified erasable programmable read-only memory and the fourth pin of the electrified erasable programmable read-only memory are all grounded, the fifth pin of the electrified erasable programmable read-only memory is electrically connected with one end of a resistor R8, the sixth pin of the electrified erasable programmable read-only memory is electrically connected with one end of a resistor R7, the seventh pin of the electrified erasable programmable read-only memory is electrically connected with one end of a capacitor C3, the seventh pin of the electrified erasable programmable read-only memory and one end of a capacitor C3 are both grounded, the eighth pin of the electrified erasable programmable read-only memory is respectively electrically connected with the other end of a capacitor C3, the other end of a resistor R7 and the other end of a resistor R8, the eighth pin of the electrified erasable programmable read-only memory and the other end of a capacitor C3 are both grounded, The other end of the resistor R7 and the other end of the resistor R8 are both electrically connected to a power supply circuit.
The storage circuit comprises a resistor R7 (the resistance value is 4.7K omega), a resistor R8 (the resistance value is 4.7K omega), a capacitor C3 (the capacitance value is 0.1uF) and a charged erasable programmable read-only memory (the model is AT24C 02).
Referring to fig. 7, the power module includes a power interface, a voltage dependent resistor RV1, a capacitor C1, a capacitor C2, a diode D1, a transformer T1, a chip high performance capacitor AC-DC converter including a first pin, a second pin, a third pin, and a fourth pin, and a chip DC-DC converter including a first pin, a second pin, a third pin, and a fourth pin; the first pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of a first winding of a transformer T1, the other end of the first winding of the transformer T1 is electrically connected with one end of a capacitor C1 and one end of a piezoresistor RV1 respectively, the second pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of a second winding of a transformer T1, the other end of the second winding of a transformer T1 is electrically connected with the other end of a capacitor C1 and the other end of a piezoresistor RV1 respectively, the third pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of the capacitor C2, the cathode of a diode D1 and the first pin of the chip DC-DC converter respectively, and the fourth pin of the chip high-performance capacitor AC-DC converter is electrically connected with the other end of the capacitor C2, the anode of the diode D1 and the second pin of the chip DC-DC converter respectively. The voltage-dependent resistor RV1 (model number TVR10561M) and the capacitor C1 (capacitance value is 0.15 uF) are included.
Referring to fig. 7, the power module includes a power interface, a voltage dependent resistor RV1, a capacitor C1, a capacitor C2, a diode D1, a transformer T1, a chip high performance capacitor AC-DC converter including a first pin, a second pin, a third pin, and a fourth pin, and a chip DC-DC converter including a first pin, a second pin, a third pin, and a fourth pin; the first pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of a first winding of a transformer T1, the other end of the first winding of the transformer T1 is electrically connected with one end of a capacitor C1 and one end of a piezoresistor RV1 respectively, the second pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of a second winding of a transformer T1, the other end of the second winding of a transformer T1 is electrically connected with the other end of a capacitor C1 and the other end of a piezoresistor RV1 respectively, the third pin of the chip high-performance capacitor AC-DC converter is electrically connected with one end of the capacitor C2, the cathode of a diode D1 and the first pin of the chip DC-DC converter respectively, and the fourth pin of the chip high-performance capacitor AC-DC converter is electrically connected with the other end of the capacitor C2, the anode of the diode D1 and the second pin of the chip DC-DC converter respectively. The varistor RV1 is TVR10561M, and the capacitance value of the capacitor C1 is 0.15 uF.
The AC-DC converter is used for converting alternating current into direct current, the DC-DC converter is used for filtering common mode interference between different places, and the AC-DC converter and the DC-DC converter are both isolated converters, namely the input and the output are isolated and not grounded; meanwhile, an additional protection design is arranged at the input end of the power supply circuit, and the voltage dependent resistor RV1 is arranged to protect the power supply from being damaged under the condition of lightning surge; the capacitor C1 and the inductor L form an EMC protection circuit.
The further optimized power interface module can also be provided with a switching power supply chip and a linear voltage regulator for realizing voltage boosting or voltage reduction and a voltage regulation chip electrically connected with the power interface, the model of the voltage regulation chip is N05B, the model of the switching power supply core is MC34063AHLF, the model of the linear voltage regulator is LM1117IMPX-3.3N05B, and the other circuit board is also provided with a plurality of TLP785 photoelectric couplers.
Several communication interfaces are described here:
the RS485 communication interface is a serial-port-based communication interface, is consistent with the data receiving and transmitting operation of the RS232 communication interface, and uses a bottom-layer driver of WinCE. The RS485 communication interface is in a half-duplex data communication mode, data can not be transmitted and received simultaneously, in order to ensure that data can not be transmitted and received, the data can be transmitted and received by hardware through direction switching, and correspondingly, the transmitting and receiving processes must be strictly separated on software. The half-duplex network formed by RS485 communication interfaces is generally a two-wire system, shielded twisted pair transmission is adopted, the wiring mode is that a bus type topological structure can be connected with 32 nodes on the same bus at most, and a master-slave communication mode is generally adopted in the RS485 communication network, namely, one master machine is provided with a plurality of slave machines. Electrical characteristics of RS 485: a logic "0" is represented by a voltage difference between the two wires of + (2-6) V; a logical "1" is represented by a voltage difference between the two wires of- (2-6) V. The interface signal level is lower than RS-232-C, the chip of the interface circuit is not easy to damage, and the level is compatible with the TTL level and can be conveniently connected with the TTL circuit.
The CAN bus communication interface integrates the functions of a physical layer and a data link layer of a CAN protocol, and CAN complete framing processing of communication data, including bit filling, data block encoding, cyclic redundancy check, priority discrimination and other works. Compared with a general communication bus, the CAN bus has outstanding reliability, instantaneity and flexibility, and typical application protocols of the CAN bus include SAEJ1939/ISO11783, CANopen, CANaerospace, DeviceNet, NMEA2000 and the like.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (6)
1. The utility model provides a high compatible servo motor communication card which characterized in that: the communication card is externally connected with at least one driver for controlling a servo motor, and comprises a processor module, a storage circuit module, a plurality of communication interface modules, a power supply interface module and a main control socket, wherein the storage circuit module is electrically connected with the processor module, the plurality of communication interface modules are electrically connected with the processor module and are used for being connected with the driver, the power supply interface module is electrically connected with the processor module, the main control socket is electrically connected with the processor module, one end of each communication interface module is electrically connected with the processor module, the other end of each communication interface module is connected with the driver, and a plurality of different groups of data transmission protocols used for transmitting control data commands to the driver are stored in the storage circuit module.
2. The highly compatible servo motor communication card of claim 1, wherein: the processor module comprises a processor chip, a plurality of driving chips electrically connected with the processor chip and a master control socket electrically connected with the processor chip.
3. The highly compatible servo motor communication card of claim 1, wherein: the communication interface module comprises at least two communication interfaces and a communication circuit matched with the communication interfaces, one end of the communication circuit is electrically connected with the communication circuit, and the other end of the communication circuit is electrically connected with the processor module.
4. A highly compatible servo motor communication card as recited in claim 3, wherein: the communication interface comprises an RS485 communication interface and a CAN bus communication interface, the communication circuit comprises an RS485 communication circuit and a CAN bus communication circuit, the RS485 communication interface is electrically connected with the RS485 communication circuit, and the CAN bus communication interface is electrically connected with the CAN bus communication circuit.
5. The highly compatible servo motor communication card of claim 4, wherein: the CAN bus communication circuit and the RS485 communication circuit are respectively and electrically connected with the processor module, and the selection switch circuit is used for switching the CAN bus communication circuit or the RS485 communication circuit to be communicated with the processor module.
6. The highly compatible servo motor communication card of claim 1, wherein: the optical fiber communication module is electrically connected with the processor module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021737767.XU CN214474976U (en) | 2020-08-19 | 2020-08-19 | High-compatibility servo motor communication card |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021737767.XU CN214474976U (en) | 2020-08-19 | 2020-08-19 | High-compatibility servo motor communication card |
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| CN214474976U true CN214474976U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736798A (en) * | 2023-08-15 | 2023-09-12 | 北京聚合信机电有限公司 | Servo control method and system |
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2020
- 2020-08-19 CN CN202021737767.XU patent/CN214474976U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736798A (en) * | 2023-08-15 | 2023-09-12 | 北京聚合信机电有限公司 | Servo control method and system |
| CN116736798B (en) * | 2023-08-15 | 2023-11-07 | 北京聚合信机电有限公司 | Servo control method and system |
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