CN203632206U - Pilot loop intelligent processing system - Google Patents
Pilot loop intelligent processing system Download PDFInfo
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- CN203632206U CN203632206U CN201320825651.5U CN201320825651U CN203632206U CN 203632206 U CN203632206 U CN 203632206U CN 201320825651 U CN201320825651 U CN 201320825651U CN 203632206 U CN203632206 U CN 203632206U
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- 238000001914 filtration Methods 0.000 claims description 7
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The utility model relates to a pilot loop intelligent processing system. The system comprises a pilot circuit, a signal processing module, and an execution module. The pilot circuit performs intrinsic safety treatment on signals and converts the signals into pulse signals. The signal processing module intelligently processes the pulse signals of the pilot circuit, filters out disturbance, identifies different states and gives out action commands. The signal processing module is electrically connected with an output end of the pilot circuit. The execution module receives the action commands given out by the signal processing module and achieves remote control for equipment. The execution module is electrically connected with an output end of the signal processing module. The pilot circuit performs the intrinsic safety treatment and conversion on the pilot signals and the signal processing module performs intelligent processing on the signals obtained after conversion, so that the problem of fault caused by an overlong control line of a pilot loop is solved and the safety and reliability of the production are guaranteed.
Description
Technical field
The utility model relates to a kind of pilot signal treatment system for coal mine equipment.
Background technology
The pilot circuit of coal mine equipment is for the starting and stopping of operating personnel's control appliance and meet the power supply circuits in advance of other conditions of work before equipment main circuit starts, because the control line distance of pilot circuit is long, easily there is short circuit or the fault opening circuit, and in signals transmission, be easily subject to extraneous interference, so just there will be the misoperation of equipment, bring the problem of fail safe and reliability.
Summary of the invention
For above-mentioned technical problem, the utility model provides a kind of pilot circuit intelligent processing system, it adopts precursor circuit to carry out intrinsic safety processing, signal conversion to pilot signal, and by signal processing module, the signal after changing is carried out to Intelligent treatment, thereby solve because pilot circuit control circuit is long, and the failure problems causing guarantees the safety and reliability of producing.
Realize the technical solution of the utility model as follows:
Pilot circuit intelligent processing system, comprises the precursor circuit that signal is carried out to intrinsic safety processing and be converted to pulse signal; And
The pulse signal of precursor circuit is carried out to Intelligent treatment, and filtering interfering also identifies different states, and then sends the signal processing module of action command, and this signal processing module is electrically connected on the output of precursor circuit; And
Receive the action command that signal processing module sends, and equipment is realized to the Executive Module of Long-distance Control, this Executive Module is electrically connected on the output of signal processing module.
Preferably, comprise transformer, current-limiting resistance, diode, rectifier bridge and photoelectric switch, the output of transformer is connected with one end of current-limiting resistance, the other end of cut-off current is connected with one end of diode, the other end of diode is connected with the input of rectifier bridge, and the output of rectifier bridge is connected with photoelectric switch.
Preferably, described signal processing module is single-chip microcomputer or DSP.
Preferably, described Executive Module comprises serial port level changer and main frame, and the input of serial port level changer is connected in the output of signal processing module, and the output of serial port level changer is electrically connected with main frame.
Adopted such scheme, precursor circuit converts external pilot signal to the pulse signal of signal processing module identification, and signal processing module utilizes the capturing function of processor to detect frequency and the width of pulse signal the pulse signal collecting.When pulse duration reaches certain width, be considered as effective pilot signal, otherwise as interference signal by its filtering.If effectively the frequency of pilot signal is about 50Hz, and within a certain period of time, its quantity within the limits prescribed, illustrates pilot circuit normally closed, just signal processing module can send normal signal, starting device to carrying out; If effectively the frequency of pilot signal is about 100Hz, and within a certain period of time, its quantity also within the limits prescribed, illustrates pilot circuit short circuit, just signal processing module can send fault-signal, arrestment to carrying out; If without effective pilot signal, illustrate that pilot circuit opens circuit in official hour, signal processing module also can send fault-signal, arrestment to carrying out.The utility model is caught the signal of precursor circuit in real time by signal processing module, filtering interfering, identifies different operating states, thereby has solved because pilot circuit control circuit is long, and the guide's short circuit causing, open circuit and fault disturb problem, guarantee produce safety and reliability.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of precursor circuit;
Fig. 3 is the flow chart that pilot circuit intelligent processing system is processed.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Referring to Fig. 1, pilot circuit intelligent processing system of the present utility model, comprises the precursor circuit that signal is carried out to intrinsic safety processing and be converted to pulse signal; And the pulse signal of precursor circuit is carried out to Intelligent treatment, and filtering interfering also identifies different states, and then sends the signal processing module of action command, and this signal processing module is electrically connected on the output of precursor circuit; And receive the action command that signal processing module sends, and equipment is realized to the Executive Module of Long-distance Control, this Executive Module is electrically connected on the output of signal processing module.
Referring to Fig. 2, precursor circuit of the present utility model preferably includes transformer, current-limiting resistance, diode, rectifier bridge and photoelectric switch, the output of transformer is connected with one end of current-limiting resistance, the other end of cut-off current is connected with one end of diode, the other end of diode is connected with the input of rectifier bridge, and the output of rectifier bridge is connected with photoelectric switch.Transformer isolation AC power, pilot signal is carried out intrinsic safety processing by current-limiting resistance, utilize the single-phase conductivity of diode to form the conducting loop of AC power half period, be converted to the pulse signal of certain frequency by rectifier bridge, through photoelectric switch, be converted to the pulse signal that signal processing module can be identified.
Referring to Fig. 3, signal processing module of the present utility model is preferably single-chip microcomputer or DSP.Signal processing module utilizes its capturing function to detect frequency and the width of pulse signal.When pulse duration reaches certain width, be considered as effective pilot signal, otherwise as interference signal by its filtering.If effectively the frequency of pilot signal is about 50Hz, and within a certain period of time, its quantity within the limits prescribed, illustrates pilot circuit normally closed, just signal processing module can send normal signal, starting device to carrying out; If effectively the frequency of pilot signal is about 100Hz, and within a certain period of time, its quantity also within the limits prescribed, illustrates pilot circuit short circuit, just signal processing module can send fault-signal, arrestment to carrying out; If without effective pilot signal, illustrate that pilot circuit opens circuit in official hour, signal processing module also can send fault-signal, arrestment to carrying out.
Executive Module of the present utility model preferably includes serial port level changer and main frame, and the input of serial port level changer is connected in the output of signal processing module, and the output of serial port level changer is electrically connected with main frame.
Comprehensive the above, adopt the pilot circuit intelligent processing system of this programme, can catch in real time the signal of precursor circuit, filtering interfering, identify different operating states, thereby solved because pilot circuit control circuit is long, and the guide's short circuit causing, open circuit and fault disturb problem, guarantee produce safety and reliability.
Claims (4)
1. pilot circuit intelligent processing system, is characterized in that: comprise the precursor circuit that signal is carried out to intrinsic safety processing and be converted to pulse signal; And
The pulse signal of precursor circuit is carried out to Intelligent treatment, and filtering interfering also identifies different states, and then sends the signal processing module of action command, and this signal processing module is electrically connected on the output of precursor circuit; And
Receive the action command that signal processing module sends, and equipment is realized to the Executive Module of Long-distance Control, this Executive Module is electrically connected on the output of signal processing module.
2. according to the pilot circuit intelligent processing system described in claims 1, it is characterized in that: comprise transformer, current-limiting resistance, diode, rectifier bridge and photoelectric switch, the output of transformer is connected with one end of current-limiting resistance, the other end of cut-off current is connected with one end of diode, the other end of diode is connected with the input of rectifier bridge, and the output of rectifier bridge is connected with photoelectric switch.
3. according to the pilot circuit intelligent processing system described in claims 1, it is characterized in that: described signal processing module is single-chip microcomputer or DSP.
4. according to the pilot circuit intelligent processing system described in claims 1, it is characterized in that: described Executive Module comprises serial port level changer and main frame, the input of serial port level changer is connected in the output of signal processing module, and the output of serial port level changer is electrically connected with main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825651.5U CN203632206U (en) | 2013-12-13 | 2013-12-13 | Pilot loop intelligent processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825651.5U CN203632206U (en) | 2013-12-13 | 2013-12-13 | Pilot loop intelligent processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632206U true CN203632206U (en) | 2014-06-04 |
Family
ID=50818648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825651.5U Expired - Lifetime CN203632206U (en) | 2013-12-13 | 2013-12-13 | Pilot loop intelligent processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715648A (en) * | 2013-12-13 | 2014-04-09 | 常州联力自动化科技有限公司 | Pilot circuit processing device |
| CN105159058A (en) * | 2015-07-27 | 2015-12-16 | 兖州煤业股份有限公司 | Pilot circuit control method, pilot circuit controller and pilot circuit |
-
2013
- 2013-12-13 CN CN201320825651.5U patent/CN203632206U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715648A (en) * | 2013-12-13 | 2014-04-09 | 常州联力自动化科技有限公司 | Pilot circuit processing device |
| CN103715648B (en) * | 2013-12-13 | 2016-05-25 | 常州联力自动化科技有限公司 | A kind of pilot circuit treating apparatus |
| CN105159058A (en) * | 2015-07-27 | 2015-12-16 | 兖州煤业股份有限公司 | Pilot circuit control method, pilot circuit controller and pilot circuit |
| CN105159058B (en) * | 2015-07-27 | 2019-03-19 | 兖州煤业股份有限公司 | A kind of precursor circuit control method, precursor circuit controller and precursor circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |