CN202997517U - Mine terminal motor safety monitoring device - Google Patents
Mine terminal motor safety monitoring device Download PDFInfo
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- CN202997517U CN202997517U CN 201320017941 CN201320017941U CN202997517U CN 202997517 U CN202997517 U CN 202997517U CN 201320017941 CN201320017941 CN 201320017941 CN 201320017941 U CN201320017941 U CN 201320017941U CN 202997517 U CN202997517 U CN 202997517U
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Abstract
A mine terminal motor safety monitoring device belongs to the technical field of computer monitoring and solves the problems that the existing mine motor protection system using cable transmission can not transfer the collected data to relevant leaders or technical personnel to judge the problem in first time. A multi-channel parallel analog-to-digital conversion sampling circuit collects a three-phase AC voltage signal and a three-phase AC current signal of a motor, and connects with a collected signal input end of a single chip microcomputer by a multi-channel parallel analog-to-digital conversion interface circuit, a drive command input end of the single chip microcomputer is connected with an input end of a PWM controller, a six-path drive signal output end of the PWM controller is connected with an input end of an isolated circuit, an output end of the isolated circuit is connected with a control end of the motor, a fault command output end of the single chip microcomputer is connected with an input end of a fault execution circuit, an output end of the fault execution circuit is connected with a control end of a contactor, and the single chip microcomputer communicates with an upper computer by a communication interface circuit.
Description
Technical field
The utility model relates to mine terminal motor safety supervising device, belongs to the computer monitoring field.
Background technology
the operational environment very severe of mine, the damage ratio of electric equipment is higher, and, also all there is certain distance between Control Room in Minepit environment and working site, and the data that existing mine motor the protects the monitoring system all adopts wire transmission to gather, this setup caused the real-time of data communication and antijamming capability low, and the protection system for motor great majority that use in existing mine are mounted in the JDB series protector in the explosion-isolated vacuum magnetic starter, this series comprehensive protector mostly is independent component, the analog circuit low precision, failure rate is high.And can only upload the data in the PC of Control Room, can not send relevant leader or technical staff the very first time to judge.
Summary of the invention
The utility model purpose is can't the very first time send the data that gather to relevant leader or the problem of technical staff to judge in order to solve the existing mine of wire transmission that adopts with protection system for motor, and a kind of mine terminal motor safety supervising device is provided.
Mine terminal motor safety supervising device described in the utility model, it comprises multidiameter delay analog-to-digital conversion sample circuit, multidiameter delay analog-to-digital conversion interface circuit, single-chip microcomputer, contactor, buffer circuit, PWM controller, communication interface circuit, host computer and fault executive circuit
Multidiameter delay analog-to-digital conversion sample circuit gathers three-phase alternating voltage signal and the three-phase alternating current signal of motor, the output of multidiameter delay analog-to-digital conversion sample circuit is connected with the input of multidiameter delay analog-to-digital conversion interface circuit, the output of multidiameter delay analog-to-digital conversion interface circuit is connected with the collection signal input of single-chip microcomputer
The driving instruction output end of single-chip microcomputer is connected with the input of PWM controller, and six road of PWM controller drives signal output part and is connected with the input of buffer circuit, and the output of buffer circuit is connected with the control end of motor,
The fault instruction output end of single-chip microcomputer is connected with the input of fault executive circuit, and the output of fault executive circuit is connected with the control end of contactor,
Single-chip microcomputer communicates by communication interface circuit and host computer.
Advantage of the present utility model: mine terminal motor safety supervising device described in the utility model adopts digitlization, modularization and Radio Transmission Technology; can not only be accurately, reaction motor fault and abnormal operating condition reliably; according to actual conditions, fault is in various degree taked the measures such as fast trip or warning; and field condition can be uploaded Surveillance center; notify at once to the monitor staff; Accident prevention further enlarges; thereby the economic loss that the serious accident of avoiding and unnecessary shutdown cause guarantees the production safety operation.
Description of drawings
Fig. 1 is the structural representation of mine terminal motor safety supervising device described in the utility model.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the described mine terminal of present embodiment motor safety supervising device, it comprises multidiameter delay analog-to-digital conversion sample circuit 1, multidiameter delay analog-to-digital conversion interface circuit 2, single-chip microcomputer 3, contactor 4, buffer circuit 5, PWM controller 6, communication interface circuit 10, host computer 11 and fault executive circuit 12
Multidiameter delay analog-to-digital conversion sample circuit 1 gathers three-phase alternating voltage signal and the three-phase alternating current signal of motor, the output of multidiameter delay analog-to-digital conversion sample circuit 1 is connected with the input of multidiameter delay analog-to-digital conversion interface circuit 2, the output of multidiameter delay analog-to-digital conversion interface circuit 2 is connected with the collection signal input of single-chip microcomputer 3
The driving instruction output end of single-chip microcomputer 3 is connected with the input of PWM controller 6, and six road of PWM controller 6 drives signal output part and is connected with the input of buffer circuit 5, and the output of buffer circuit 5 is connected with the control end of motor,
The fault instruction output end of single-chip microcomputer 3 is connected with the input of fault executive circuit 12, and the output of fault executive circuit 12 is connected with the control end of contactor 4,
Single-chip microcomputer 3 communicates by communication interface circuit 10 and host computer 11.
Described multidiameter delay analog-to-digital conversion sample circuit 1 comprises motor A, B, C three-phase alternating voltage and current effective value, indirect calculation is gone out the parameters such as active power, reactive power and power factor.Described fault executive circuit 12 can be taked fast trip and sound and light alarm measure to fault in various degree according to the situation to actual acquired data.
The specific works process of present embodiment device: after A, B, C three-phase alternating voltage and the current acquisition of multidiameter delay analog-to-digital conversion sample circuit 1 during with machine operation, enter in single-chip microcomputer 3 by multidiameter delay analog-to-digital conversion interface circuit 2, process is calculated the calculating of the effective value of voltage, electric current.Whether normally the parameters such as active power, reactive power and power factor when recycling formula indirect calculation goes out machine operation judge machine operation theoretical foundation to be ready for use on.When motor works, data are uploaded to host computer 11 by communication interface circuit 10, when motor broke down, single-chip microcomputer 3 can take fast trip to cut off the electricity supply and the sound and light alarm measure to fault in various degree by fault executive circuit 12 according to the situation to actual acquired data.Fault message is uploaded to host computer 11 by communication interface circuit 10.
Embodiment two: present embodiment is described further execution mode one, and it also comprises display 7, and the idsplay order output of single-chip microcomputer 3 is connected with the input of display 7.
During the motor normal operation, the operating state of motor is carried out the data demonstration by advancing display 7.
When motor has fault, the protection classification that also can take by display 7 displaying scenes at the scene.
Embodiment three: present embodiment is described further execution mode one, two, and it also comprises keyboard 8, and the external command output of keyboard 8 is connected with the external command input of single-chip microcomputer 3.
Keyboard 8 is used for on-site parameters and sets.
Embodiment four: present embodiment is described further execution mode one, two or three, and it also comprises alarm 9, and the alarm command output of single-chip microcomputer 3 is connected with the input of alarm 9.
When motor had fault, alarm 9 was reported to the police.
Embodiment five: present embodiment is described further execution mode one, two, three or four, and it is the single-chip microcomputer of MSP430F449 that single-chip microcomputer 3 is selected model.
Embodiment six: present embodiment is described further execution mode one, and it is that the modulus conversion chip of AD73360 is realized that multidiameter delay analog-to-digital conversion sample circuit 1 is selected model.
The good characteristic of this chip self and original periphery circuit design can well be applicable to the signals collecting work of native system:
(1) AD73360 has six independently analog input channels, and each passage can be sampled simultaneously, has eliminated the phase error that common AD causes because of the time sharing sampling to multiple signals, three-phase voltage and the bus current of the motor of can sampling in real time.In addition, each paths of AD73360 has built-in gain-programmed amplifier and Anti-liased filter, and it is greatly reduced the amplifying circuit of input and the requirement of Anti-liased filter, and the design of modulate circuit is more simplified.
(2) AD73360 uses six thread industrial standard synchronous serial interfaces, and port front-end sampling speed and the control able to programme of rear end transmission rate (the highest support that six passages are simultaneously with the sampling of 64KHz speed), because the number of interface signal line only has six, so so not only saved the area of printed board, and effectively reduced electromagnetic interference, thereby make system's operation more stable.
Adopt dedicated three-phase electrical measurement AD device AD73360 and AC coupled mode that three road signals are sampled simultaneously, greatly improved sampling precision and vulnerability to jamming, thereby improved speed adjustable range (〉=20) and the stability of system.
Claims (6)
1. mine terminal motor safety supervising device, it is characterized in that, it comprises multidiameter delay analog-to-digital conversion sample circuit (1), multidiameter delay analog-to-digital conversion interface circuit (2), single-chip microcomputer (3), contactor (4), buffer circuit (5), PWM controller (6), communication interface circuit (10), host computer (11) and fault executive circuit (12)
Multidiameter delay analog-to-digital conversion sample circuit (1) gathers three-phase alternating voltage signal and the three-phase alternating current signal of motor, the output of multidiameter delay analog-to-digital conversion sample circuit (1) is connected with the input of multidiameter delay analog-to-digital conversion interface circuit (2), the output of multidiameter delay analog-to-digital conversion interface circuit (2) is connected with the collection signal input of single-chip microcomputer (3)
The driving instruction output end of single-chip microcomputer (3) is connected with the input of PWM controller (6), six road of PWM controller (6) drives signal output part and is connected with the input of buffer circuit (5), the output of buffer circuit (5) is connected with the control end of motor
The fault instruction output end of single-chip microcomputer (3) is connected with the input of fault executive circuit (12), and the output of fault executive circuit (12) is connected with the control end of contactor (4),
Single-chip microcomputer (3) communicates by communication interface circuit (10) and host computer (11).
2. mine terminal motor safety supervising device according to claim 1, is characterized in that, it also comprises display (7), and the idsplay order output of single-chip microcomputer (3) is connected with the input of display (7).
3. mine terminal motor safety supervising device according to claim 1, is characterized in that, it also comprises keyboard (8), and the external command output of keyboard (8) is connected with the external command input of single-chip microcomputer (3).
4. mine terminal motor safety supervising device according to claim 1, is characterized in that, it also comprises alarm (9), and the alarm command output of single-chip microcomputer (3) is connected with the input of alarm (9).
5. according to claim 1,2,3 or 4 described mine terminal motor safety supervising devices, it is characterized in that, it is the single-chip microcomputer of MSP430F449 that single-chip microcomputer (3) is selected model.
6. mine terminal motor safety supervising device according to claim 1, is characterized in that, it is that the modulus conversion chip of AD73360 is realized that multidiameter delay analog-to-digital conversion sample circuit (1) is selected model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017941 CN202997517U (en) | 2013-01-14 | 2013-01-14 | Mine terminal motor safety monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017941 CN202997517U (en) | 2013-01-14 | 2013-01-14 | Mine terminal motor safety monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997517U true CN202997517U (en) | 2013-06-12 |
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ID=48568649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017941 Expired - Fee Related CN202997517U (en) | 2013-01-14 | 2013-01-14 | Mine terminal motor safety monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633416A (en) * | 2018-12-29 | 2019-04-16 | 深圳开立生物医疗科技股份有限公司 | A kind of detection method of stepper motor driving circuit, apparatus and system |
-
2013
- 2013-01-14 CN CN 201320017941 patent/CN202997517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633416A (en) * | 2018-12-29 | 2019-04-16 | 深圳开立生物医疗科技股份有限公司 | A kind of detection method of stepper motor driving circuit, apparatus and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20140114 |