CN103197236A - Detecting system and method for states of belt conveyor protection switch - Google Patents
Detecting system and method for states of belt conveyor protection switch Download PDFInfo
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- CN103197236A CN103197236A CN201310054932XA CN201310054932A CN103197236A CN 103197236 A CN103197236 A CN 103197236A CN 201310054932X A CN201310054932X A CN 201310054932XA CN 201310054932 A CN201310054932 A CN 201310054932A CN 103197236 A CN103197236 A CN 103197236A
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- protection switch
- belt feeder
- bus controller
- feeder protection
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 29
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a detecting system for states of a belt conveyor protection switch and a detecting method for the states of the belt conveyor protection switch. The detecting system comprises an upper computer and a bus controller, wherein the bus controller is connected with the belt conveyor protection switch, the belt conveyor protection switch is provided with a unique address, and the bus controller is used for obtaining the states of the belt conveyor protection switch according to the address and sending the working states of the belt conveyor protection to the upper machine. The upper machine is used for obtaining the working states of the belt conveyor protection switch with the unique address and method can be adopted to precisely locate the triggered belt conveyor protection switch, and therefore the protection switch can be reset timely so as to guarantee normal running of production and improve production efficiency.
Description
Technical field
The present invention relates to the belt feeder protection switch, relate in particular to a kind of belt feeder protection switch status detection system and method.
Background technology
The belt feeder protection switch is parts commonly used on the belt feeder equipment.Particularly, the belt feeder protection switch that adopts at coal conveyer belt generally is belt feeder stay cord sideslip switch.In case of emergency, by stay cord sideslip switch is controlled, can stop the irregular operating that moves belt feeder or prevent belt feeder fast.In addition, when belt feeder overhaul of the equipments and belt feeder were safeguarded, the staff can also be by triggering stay cord sideslip switch to guarantee belt feeder equipment and personal security.But along with the employed coal conveyer belt total length of belt feeder equipment is more and more longer, the quantity of stay cord sideslip switch is also more and more, thereby cause to locate the stay cord sideslip switch that triggers in time, exactly, corresponding stay cord sideslip switch is resetted, thereby influence production efficiency.
Summary of the invention
In order to solve above-mentioned technical matters, the invention provides a kind of belt feeder protection switch status detection system and method, the belt feeder protection switch that is triggered with accurate location.
The invention provides a kind of belt feeder protection switch status detection system; this detection system comprises host computer and bus controller; described bus controller is connected with described belt feeder protection switch; described belt feeder protection switch has unique address; described bus controller is used for obtaining according to this address the state of described belt feeder protection switch, and the duty of described belt feeder protection switch is sent to described host computer.
Preferably, a plurality of described bus controllers link together in the mode of series connection, and at least one in a plurality of described bus controller after the series connection is connected with described host computer; And/or a plurality of described belt feeder protection switches with the series connection mode couple together, a plurality of described belt feeder protection switch after the series connection is connected with a described bus controller.
Preferably, be provided with first repeater between the adjacent described bus controller, perhaps be provided with second repeater between the adjacent belt feeder protection switch.
Preferably; described first repeater is arranged between the adjacent described bus controller of communication distance greater than the scheduled communication distance; perhaps described second repeater is arranged between the adjacent described belt feeder protection switch of communication distance greater than the scheduled communication distance between at least one and the described bus controller in the adjacent described belt feeder protection switch, perhaps described second repeater be arranged on described bus controller between the quantity of the belt feeder protection switch of connecting be the outside of 31 described belt feeder protection switch.
Preferably, described belt feeder protection switch is pull switch or sideslip switch.
Preferably, described belt feeder protection switch is used for the message that respond packet contains the address identical with self address, and self switchtype and duty is sent to described bus controller.
Preferably, described bus controller is used for the request of data of the described host computer of response, and switchtype and the duty of the described belt feeder protection switch that this bus controller is received are sent to described host computer.
The invention provides a kind of belt feeder protection switch status detection method, this method comprises:
Step 1, bus controller is used for obtaining according to the unique address that described belt feeder protection switch has the state of described belt feeder protection switch;
Step 2, described bus controller sends to described host computer with the duty of described belt feeder protection switch.
Preferably, a plurality of described bus controllers link together in the mode of series connection, and at least one in a plurality of described bus controller after the series connection is connected with described host computer; And/or a plurality of described belt feeder protection switches with the series connection mode couple together, a plurality of described belt feeder protection switch after the series connection is connected with a described bus controller.
Preferably, be provided with first repeater between the adjacent described bus controller, perhaps be provided with second repeater between the adjacent belt feeder protection switch.
Preferably; described first repeater is arranged between the adjacent described bus controller of communication distance greater than the scheduled communication distance; perhaps described second repeater is arranged between the adjacent described belt feeder protection switch of communication distance greater than the scheduled communication distance between at least one and the described bus controller in the adjacent described belt feeder protection switch, perhaps described second repeater be arranged on described bus controller between the quantity of the belt feeder protection switch of connecting be the outside of 31 described belt feeder protection switch.
Preferably, described belt feeder protection switch is pull switch or sideslip switch.
Preferably, described step 1 comprises:
Step 11, described bus controller sends message to described belt feeder protection switch, comprises the address of described belt feeder protection switch in this message;
Step 12, the described belt feeder protection switch with address identical with the address that comprises in this message responds this message, and self switchtype and duty is sent to described bus controller.
Preferably, described step 2 comprises:
Step 21, described host computer sends request of data to described bus controller;
Step 22, described bus controller responds the request of data of described host computer, and switchtype and the duty of the described protection switch that this bus controller is received are sent to described host computer.
The present invention obtains the duty of the belt feeder protection switch with unique address by host computer, and can accurately locate the belt feeder protection switch that triggers, thereby this protection switch that can in time reset is enhanced productivity with normally carrying out of guaranteeing to produce.
Description of drawings
These and other features of the present invention, aspect and advantage will be described with reference to the accompanying drawing of embodiment, and its purpose is to describe embodiment rather than restriction the present invention.
Fig. 1 is belt feeder protection switch status detection system schematic provided by the invention;
Fig. 2 is bus controller provided by the invention and protection switch connection diagram;
Fig. 3 is the structural representation of protection switch;
Fig. 4 is the repeater synoptic diagram;
Fig. 5 is belt feeder protection switch status detection process flow diagram provided by the invention.
Description of reference numerals:
31 type toggle switchs, 32 first baud rate toggle switchs
33 first address toggle switchs 34 first send and receive pin
35 first power supplys and control pin 36 contacts
37 first reset switches, 41 second address toggle switchs
42 second baud rate toggle switchs 43 second send and receive pin
44 the 3rd send and receive pin 45 second sources and control pin
46 second reset switches
Embodiment
How accurately to find corresponding belt feeder protection switch in order solving, and to make it reset to enhance productivity, the invention provides belt feeder protection switch status detection system and method.
Belt feeder protection switch status detection system architecture provided by the invention as shown in Figure 1.Need to prove that the structure shown in Fig. 1 only is used as example but not limitation of the present invention.Generally speaking; belt feeder protection switch of the present invention (abbreviation protection switch) status detection system can comprise host computer and bus controller; described bus controller is connected with described belt feeder protection switch; described belt feeder protection switch has unique address; described bus controller is used for obtaining according to this address the state of described belt feeder protection switch, and the duty of described belt feeder protection switch is sent to described host computer.Particularly, system shown in Figure 1 is a kind of implementation of the present invention.In Fig. 1, in order to increase the extensibility of this detection system, LAN (Local Area Network) and programmable logic controller (PLC) (PLC) have been utilized.Host computer and PLC all can access to LAN in, host computer and PLC communicate by LAN (Local Area Network), and PLC can serve as the intermediary that host computer is communicated by letter with controller.As shown in Figure 1, bus controller can link together by the mode of series connection, and one of them bus controller can be connected with PLC, thereby can realize the communication between host computer and the bus controller.Need to prove, also can realize the present invention by other means, for example bus controller directly is connected with host computer, and perhaps bus controller is by parts access to LAN such as switches.Replacedly, host computer can be arranged in different LAN (Local Area Network) with bus controller, and middle logical the Internet or other networks make also can realize communication between these two LAN (Local Area Network).
Because communication distance is to the influence of communication quality, when communication distance was greater than certain numerical value, for example 1200 meters, the communication quality between the communication device can sharply descend, and makes the quality of communication can not satisfy the requirement of communication.In order to address this problem, the present invention arranges repeater in the place of needs and solves this problem.Fig. 2 is bus controller provided by the invention and protection switch connection diagram.As can be seen from the figure, no matter be between the bus controller or bus controller and protection switch between, can improve communication quality by repeater.When the distance between two bus controllers during greater than 1200 meters, can between these two bus controllers, a bus controller be set.If the distance between two bus controllers is very far away, for example greater than 2400 meters, can improve the quality of communication by the series connection of repeater, for example between these two bus controllers, two repeaters are set.The rest may be inferred, by guaranteeing that two distances between the communication device are less than or equal to 1200 meters and determine suitable repeater quantity.For protection switch, if the distance between protection switch and the corresponding bus controller, needs to increase repeater and guarantee communication quality during greater than 31 greater than the protection switch of connecting between 1200 meters or protection switch and the bus controller.Similarly, if the distance between the protection switch also greater than 2400 meters, also can use two or more repeaters to connect to guarantee the quality of communicating by letter.
For the communication between the bus controller, can adopt serial communication protocol, for example the RS485 agreement.Similarly, also can adopt for example serial communication protocol of RS485 agreement for communicating by letter between bus controller and the protection switch.Use the RS485 serial communication protocol to communicate whole design is become simply, control is also convenient many, and the while can reduce cost and improve communication distance.
In order to realize technical scheme of the present invention, the present invention has selected protection switch as shown in Figure 3 for use.This protection switch both can be used as pull switch, also can be used as the sideslip switch.Explanation just, the switchtype of this protection switch is controlled, can control by type toggle switch 31, when type toggle switch 31 is set to 0, as pull switch, when type toggle switch 31 is set to 1, as the sideslip switch.The baud rate of communication can be controlled by the first baud rate toggle switch 32, be in out the position of (ON) at the first baud rate toggle switch 32, baud rate is 4800B/S, is in the position of pass (OFF) at the first baud rate toggle switch 32, and baud rate is 2400B/S.The first address toggle switch 33 can be used for arranging the address of protection switch, also guarantees the address difference of each protection switch when setting the address, and namely each protection switch has unique address.Among Fig. 3, contact 36 is in the normal condition of switch connection power supply.First sends with receiving pin 34 mainly is the pin that is connected with total line traffic control, other protection switches or repeater, for example sends the pin on the both positive and negative polarity of signal, the both positive and negative polarity that receives signal and shielding ground etc.Need to prove, if protection switch at the end of bus and control line, needs the short circuit head (not shown) on the protection switch is inserted in the position of " opening " so, and with the control signal output pin short circuit in first power supply and the control pin 35.First power supply and control pin 35 mainly comprise power supply input, output pin and control signal input, output pin.In use, set all numerical value after, can press first reset switch 37, realize resetting of protection switch.
Further, in order to realize telecommunication, guarantee communication quality, the present invention has selected repeater as shown in Figure 4 for use.Repeater has the second address toggle switch 41, and these second address toggle switch, 41 set addresses should be the address of first protection switch behind this repeater.In order to keep the baud rate unanimity, should the second baud rate toggle switch, 42 set baud rates be set to consistent with the set baud rate of the first baud rate toggle switch 32.Second sends with receiving pin 43 mainly is the pin that is connected with bus controller or other protection switches of total repeater front, for example sends the both positive and negative polarity of signal, the both positive and negative polarity that receives signal and shielding ground pin etc.The 3rd sends with receiving pin 43 mainly is the pin that is connected with other protection switches of total repeater back, for example sends the both positive and negative polarity of signal, the both positive and negative polarity that receives signal and shielding ground pin etc.Second source and control pin 45 comprise power supply input, output and control signal input, output pin.
By the reasonable setting to above-mentioned protection switch and repeater, the quality that can realize the cascade of protection switch and guarantee to communicate by letter.For bus controller, also can realize series connection between the bus by the similar plan of establishment.
Belt feeder protection switch status detection method provided by the invention as shown in Figure 5.Method provided by the invention can be applied in as shown in Figure 1 the detection system, but also can be as in the other system that can realize by the present invention.As shown in Figure 5, bus controller can regularly or irregularly send type and the duty that message is obtained protection switch to protection switch for type and the duty, particularly duty of the switch that is protected.Correctly respond in order to ensure protection switch, and avoid conflict, bus controller can comprise the address (step 501) of protection of goal switch in message.Bus controller can send to each protection switch by the form of broadcasting, and after each protection switch received this message, the address that need comprise in the message and the address of self compared, and judge whether and the address of self consistent (step 502).If the address in the protection switch decision message and the address of self are inconsistent, then ignore this message (step 503).If the address in the protection switch decision message is consistent with the address of self, then responds this message, and self switchtype and duty is sent to bus controller (504).Bus controller is by sending switchtype and the duty that message can obtain all protection switches of being controlled by it.Behind the switchtype and duty that obtain these protection switches, bus controller is judged the request of data (step 505) that whether receives host computer.If do not receive; can finish whole flow process; if received the request of data of host computer; then switchtype and the duty of the protection switch of its reception can be sent to host computer; thereby the staff can understand the operation conditions of whole protecting switch by the information that host computer receives; the protection switch that triggers of location exactly, and reset enhance productivity (step 506) in time.
Above flow process also only is exemplary; for those skilled in the art, also can carry out modification to it; bus controller type and the duty of collecting its protection switch of controlling afterwards in the request of data that receives host computer for example, and type and the duty of this protection switch be sent to host computer.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (14)
1. belt feeder protection switch status detection system; it is characterized in that; this detection system comprises host computer and bus controller; described bus controller is connected with described belt feeder protection switch; described belt feeder protection switch has unique address; described bus controller is used for obtaining according to this address the state of described belt feeder protection switch, and the duty of described belt feeder protection switch is sent to described host computer.
2. detection system according to claim 1 is characterized in that, a plurality of described bus controllers link together in the mode of series connection, and at least one in a plurality of described bus controller after the series connection is connected with described host computer; And/or a plurality of described belt feeder protection switches with the series connection mode couple together, a plurality of described belt feeder protection switch after the series connection is connected with a described bus controller.
3. detection system according to claim 2 is characterized in that, is provided with first repeater between the adjacent described bus controller, perhaps is provided with second repeater between the adjacent belt feeder protection switch.
4. detection system according to claim 3; it is characterized in that; described first repeater is arranged between the adjacent described bus controller of communication distance greater than the scheduled communication distance; perhaps described second repeater is arranged between the adjacent described belt feeder protection switch of communication distance greater than the scheduled communication distance between at least one and the described bus controller in the adjacent described belt feeder protection switch, perhaps described second repeater be arranged on described bus controller between the quantity of the belt feeder protection switch of connecting be the outside of 31 described belt feeder protection switch.
5. according to any described detection system among the claim 1-4, it is characterized in that described belt feeder protection switch is pull switch or sideslip switch.
6. according to any described detection system among the claim 1-4; it is characterized in that; described belt feeder protection switch is used for the message that respond packet contains the address identical with self address, and self switchtype and duty is sent to described bus controller.
7. detection system according to claim 6; it is characterized in that; described bus controller is used for the request of data of the described host computer of response, and switchtype and the duty of the described belt feeder protection switch that this bus controller is received are sent to described host computer.
8. belt feeder protection switch status detection method is characterized in that this method comprises:
Step 1, bus controller is used for obtaining according to the unique address that described belt feeder protection switch has the state of described belt feeder protection switch;
Step 2, described bus controller sends to described host computer with the duty of described belt feeder protection switch.
9. detection method according to claim 8 is characterized in that, a plurality of described bus controllers link together in the mode of series connection, and at least one in a plurality of described bus controller after the series connection is connected with described host computer; And/or a plurality of described belt feeder protection switches with the series connection mode couple together, a plurality of described belt feeder protection switch after the series connection is connected with a described bus controller.
10. detection method according to claim 9 is characterized in that, is provided with first repeater between the adjacent described bus controller, perhaps is provided with second repeater between the adjacent belt feeder protection switch.
11. detection method according to claim 10; it is characterized in that; described first repeater is arranged between the adjacent described bus controller of communication distance greater than the scheduled communication distance; perhaps described second repeater is arranged between the adjacent described belt feeder protection switch of communication distance greater than the scheduled communication distance between at least one and the described bus controller in the adjacent described belt feeder protection switch, perhaps described second repeater be arranged on described bus controller between the quantity of the belt feeder protection switch of connecting be the outside of 31 described belt feeder protection switch.
12. any described detection method is characterized in that according to Claim 8-11, described belt feeder protection switch is pull switch or sideslip switch.
13. any described detection method according to Claim 8-11 is characterized in that described step 1 comprises:
Step 11, described bus controller sends message to described belt feeder protection switch, comprises the address of described belt feeder protection switch in this message;
Step 12, the described belt feeder protection switch with address identical with the address that comprises in this message responds this message, and self switchtype and duty is sent to described bus controller.
14. any described detection method according to Claim 8-11 is characterized in that described step 2 comprises:
Step 21, described host computer sends request of data to described bus controller;
Step 22, described bus controller responds the request of data of described host computer, and switchtype and the duty of the described protection switch that this bus controller is received are sent to described host computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310054932XA CN103197236A (en) | 2013-02-20 | 2013-02-20 | Detecting system and method for states of belt conveyor protection switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310054932XA CN103197236A (en) | 2013-02-20 | 2013-02-20 | Detecting system and method for states of belt conveyor protection switch |
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| CN103197236A true CN103197236A (en) | 2013-07-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
| CN102190151A (en) * | 2011-03-24 | 2011-09-21 | 芜湖新兴铸管有限责任公司 | Control system for belt conveyor |
| CN102514907A (en) * | 2011-12-21 | 2012-06-27 | 枣庄矿业集团新安煤业有限公司 | Belt tension interference automatic alarm and protection device |
| CN203084163U (en) * | 2013-02-20 | 2013-07-24 | 中国神华能源股份有限公司 | Detecting system for state of belt conveyor protection switch |
-
2013
- 2013-02-20 CN CN201310054932XA patent/CN103197236A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
| CN102190151A (en) * | 2011-03-24 | 2011-09-21 | 芜湖新兴铸管有限责任公司 | Control system for belt conveyor |
| CN102514907A (en) * | 2011-12-21 | 2012-06-27 | 枣庄矿业集团新安煤业有限公司 | Belt tension interference automatic alarm and protection device |
| CN203084163U (en) * | 2013-02-20 | 2013-07-24 | 中国神华能源股份有限公司 | Detecting system for state of belt conveyor protection switch |
Non-Patent Citations (1)
| Title |
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| 邓恩昌等: "485串行通讯在神华天津煤码头控制系统中的应用", 《港工技术》 * |
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Application publication date: 20130710 |