CN105946902A - Static output and static dynamic pulse detection track traffic safety output system - Google Patents
Static output and static dynamic pulse detection track traffic safety output system Download PDFInfo
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- CN105946902A CN105946902A CN201610309006.6A CN201610309006A CN105946902A CN 105946902 A CN105946902 A CN 105946902A CN 201610309006 A CN201610309006 A CN 201610309006A CN 105946902 A CN105946902 A CN 105946902A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
Abstract
The invention relates to a static output and static dynamic pulse detection track traffic safety output system, which comprises a safety control circuit, wherein the safety control circuit comprises a safety relay used for controlling corresponding signal equipment; the safety relay is controlled through a control unit; the safety control circuit at least comprises two passage control units; each passage control unit comprises a processing unit, an output unit and a dynamic and static stoping unit; the output unit corresponds to the processing unit and is connected with the safety relay; the processing unit comprises a short-time detection pulse generating module, a short-time pulse decoding module and a static decoding module; and the safety control circuit also comprises a reference signal generating unit used for providing reference signals for the control units. By installing dynamic and static stoping units in a track traffic control circuit, the processing units can perform stoping comparison on the output result, so that the circuit control can be determined; and the accuracy of the whole circuit is improved.
Description
Present patent application is invention and created name " a kind of track traffic safety control circuit and system "
Divisional application, the filing date of original application JIUYUE in 2014 23 days, Application No. 2014104899558.
Technical field
The present invention relates to field of track traffic, particularly relate to safety control circuit and safety in a kind of track traffic
Control system.
Background technology
In track field of traffic control, generally, its Safety output is by directly driving outside control
Safety relay thus control corresponding signalling arrangement (such as the trackside equipment such as semaphore, goat and traction
The mobile unit such as control system, car door).Generally, Safety output system external provide certain voltage from
And external relay excitation is picked up or loss of excitation falls and then controls external signal equipment.And it is known that
Relay excitation picks up and often represents a kind of precarious position, if continuing in the outside that makes of Safety output system mistake
Electrical equipment excitation picks up, it is likely that cause the most serious accidents such as train derailing or collision.
At present, the Safety output that industry generally exists controls there are two kinds, and one is Static output mode, i.e. needs
When externally exporting, provide directly to external relay and can allow it to the voltage that excitation picks up.Another kind of
Mode is dynamical output mode, when i.e. needing externally to export, and the pulse signal of output certain frequency, utilize arteries and veins
Rush and electric capacity is charged, be then that relay is powered by electric capacity, utilize the unsymmetry of discharge and recharge to make electric capacity electricity
Pressure can maintain the state that external relay can keep excitation to pick up.
For two kinds of Safety output modes that industry is commonly used, analyze its defect existed separately below.The
Greatest problem existing for a kind of way of output is can not to find in time when adhesion fault occurs in output circuit,
System mistake is caused to export, consequently, it is possible to cause the generation of dangerous situation.Specific explanations is as follows: 1. work as system
Long-time externally output " 1 ", i.e. external relay are maintained at excitation and pick up state, and now output circuit occurs
Adhesion fault, the output state of circuit keeps consistent with system output state, it is impossible to adhesion fault detected,
And when system needs externally output " 0 ", cause exporting " 0 " owing to circuit sticks together fault,
Cause the generation of dangerous situation；2. it is maintained at mistake when system the most externally exports " 0 ", i.e. external relay
Magnetic full state, now output circuit sticks together fault, although inside track traffic, Safety output is generally adopted
By multichannel output voting mechanism, when only one of which passage sticks together fault, the output of system external will not
Change, but system cannot detect this fault, As time goes on, other the one of voting passage
Individual passage output circuit also there occurs identical adhesion fault, thus causes system mistake externally to export, finally
The generation of dangerous situation may be caused.The second way of output exist greatest problem be system reliability and
Availability is substantially reduced, and adds maintenance cost.Owing to using the output form of dynamic discharge and recharge to realize externally
Output, it is necessary to repeatedly output capacitance is carried out discharge and recharge, and repeated charge can cause the electric capacity life-span big
Big reduction, from the point of view of one piece of output board card, the output capacitance fault of any one output channel all can cause
Whole output board card is unavailable, thus causes system unavailable.In actual applications, output channel often than
More, thus cause the reliability of whole system the highest, the service intervals of system is short, improves maintenance cost.
Summary of the invention
The technical problem to be solved is to provide that a kind of control circuit is simple, reliability is high, safeguards into
This low Static output adds the track traffic Safety output system of static dynamic pulse detection.
In order to solve above technical problem, the technical solution used in the present invention is: a kind of Static output adds static state
The track traffic Safety output system of dynamic pulse detection, including safety control circuit, described security control electricity
Road includes the safety relay for controlling corresponding signal equipment, and described safety relay is entered by control unit
Row controls, and described safety control circuit at least includes the control unit of two passages, each channel control unit
Corresponding with described processing unit including processing unit and connect described safety relay output unit,
And a sound state back production unit, described processing unit includes detecting pulses generation module, in short-term arteries and veins in short-term
Rushing decoder module and static decoder module, described safety control circuit also includes for carrying to described control unit
Reference signal generation unit for reference signal；The output unit of each passage includes one for driving relay
The output photoelectric coupled switch of device, the sound state back production unit of each passage include a triple gate and to
Described triple gate Enable Pin provides the back production photoelectric coupling switch of signal, the input sun of output photoelectric coupled switch
Extremely electrically connect processing unit, the input cathode terminal of output photoelectric coupled switch electrically, output photoelectric coupling
The output collector terminal of combination switch connects VCC, and the output emitter terminal of output photoelectric coupled switch is electrically connected and succeeds
Electrical equipment electrically connects the input anode of back production photoelectric coupling switch simultaneously, the input negative electrode of back production photoelectric coupling switch
Ground connection, the current collection of back production photoelectric coupling switch is as the Enable Pin of triple gate and connects pull-up resistor, back production light
The grounded emitter of electric coupling switch.
Preferably, the input cathode terminal electrical connection processing unit of output photoelectric coupled switch, output photoelectric couples
The input anode tap electric connection of power supply VCC of switch, the output collector terminal of output photoelectric coupled switch connects ground,
The output emitter terminal electrical connection relay of output photoelectric coupled switch electrically connects back production photoelectric coupling switch simultaneously
Input negative electrode, the input anode of back production photoelectric coupling switch connects VCC, back production photoelectric coupling switch emitter stage
The electric Enable Pin as triple gate also connects pull down resistor, and the colelctor electrode of back production photoelectric coupling switch is electrically.
Preferably, rail safety control system execution following steps:
Described reference signal generation unit produces a square-wave signal；
The described pulses generation module of detection in short-term produces a persistent period relatively in the edge of described square-wave signal
Short detection pulse in short-term；
Described processing unit couples the most in the output signal according to the condition selecting being currently needed for output
Detection pulse；
The back production signal of sound state back production unit collection is decoded by short-time pulse decoder module, detection back production letter
Whether comprise in number and detect pulse in short-term, to determine whether output circuit sticks together；
The back production signal of sound state back production unit collection is solved by static decoder module according to described square-wave signal
Code, confirms that the pulse signal of detection in short-term comprised in back production signal within a complete cycle is corresponding with output
Dynamic pulse signal whether consistent, to confirm the normal work of circuit.
Preferably, described reference signal generation unit produces dutycycle is the square-wave signal of 50%.
Preferably, the frequency of described square-wave signal is f, 10Hz≤f≤200Hz.
By arranging sound state back production unit in track transport control circuit so that processing unit can be to defeated
The result gone out can carry out back production contrast, thus determines the control of circuit, improves the accuracy of whole circuit.
Pulse is detected in short-term by setting at the edge of square-wave signal (rising edge or trailing edge), and by this inspection
Survey signal to coupled to export in control signal, utilize in rear end processing unit that this detects pulse signal in short-term and enter
Row decoding detection contrast, decodes principle of contrast according to difference, the fault detect of circuit can be determined and continued
Electrical equipment adhesion or circuit cannot export, prevents fault accumulation and mistake output, improves security of system,
And circuit is simple, reliability is high.
Accompanying drawing explanation
The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the circuit diagram of the embodiment of track traffic safety control circuit of the present invention and system；
Fig. 2 is the detection pulse sequence in short-term of the embodiment of track traffic safety control circuit of the present invention and system
Schematic diagram；
Fig. 3 is the processing unit output logic of the embodiment of track traffic safety control circuit of the present invention and system
" 1 " time diagram；
Fig. 4 is the processing unit output logic of the embodiment of track traffic safety control circuit of the present invention and system
" 0 " time diagram；
Fig. 5 is the partial circuit diagram of the embodiment of track traffic safety control circuit of the present invention and system；
Fig. 6 is the graph of a relation between the signal of the embodiment of track traffic safety control circuit of the present invention and system；
Fig. 7 is the graph of a relation between the signal of the embodiment of track traffic safety control circuit of the present invention and system.
Detailed description of the invention
Embodiment:
One track traffic safety control circuit of the present invention, including continuing for controlling the safety of corresponding signal equipment
Electrical equipment, described safety relay is controlled by control unit, and wherein, described safety control circuit is at least
Including the control unit of two passages, each channel control unit includes a processing unit and described process
Unit is corresponding and connects the output unit of described safety relay and a sound state back production unit, described
Safety control circuit also includes the reference signal generation unit for providing reference signal to described control unit.
The sound state back production unit input of each passage connects the outfan of other passage output units, each passage
The outfan of sound state back production unit connect the processing unit of this passage.
As it is shown in figure 1, in the present embodiment, described safety control circuit includes two control units of A and B,
Wherein, control unit A includes processing unit A, output unit A (1), sound state back production unit A (3), control
Unit B processed includes processing unit B, output unit B (2), sound state back production unit B (4).Described process is single
Unit A controls output unit A output control relay signal, and described processing unit B controls described output unit
B output control relay signal, described sound state back production unit A connects output unit B, to output unit B
Output signal carry out back production and be transferred to processing unit A, it is single that described sound state back production unit B connects output
Unit A, carries out back production to the output signal of output unit A and is transferred to processing unit B.
The output unit of each passage includes one for the output photoelectric coupled switch driving relay.Each
The sound state back production unit of passage includes a triple gate and provides signal to described triple gate Enable Pin
Back production photoelectric coupling switch.
As it is shown in figure 1, the input anode tap electrical connection of the output photoelectric coupled switch in output unit A processes
Unit A, the input cathode terminal of the output photoelectric coupled switch in output unit A electrically, output unit
The output collector terminal of the output photoelectric coupled switch in A connects VCC, the output photoelectric in output unit A
The output emitter terminal electrical connection relay of coupled switch electrically connects the back production in sound state back production unit B simultaneously
The input anode of photoelectric coupling switch, the input of the back production photoelectric coupling switch in sound state back production unit B is cloudy
Pole ground connection, the colelctor electrode of the back production photoelectric coupling switch in sound state back production unit B is as the enable of triple gate
Hold and connect pull-up resistor, the grounded emitter of the back production photoelectric coupling switch in sound state back production unit B.
The input cathode terminal electrical connection processing unit of the output photoelectric coupled switch in output unit B, output is single
The input anode tap electric connection of power supply VCC of output photoelectric coupled switch in unit B, defeated in output unit B
The output collector terminal going out photoelectric coupling switch connects ground, the output photoelectric coupled switch in output unit B
The back production photoelectric coupling that output emitter terminal electrical connection relay electrically connects in sound state back production unit A simultaneously is opened
The input negative electrode closed, the input anode of the back production photoelectric coupling switch in sound state back production unit A meets VCC,
Back production photoelectric coupling switch emitter stage in sound state back production unit A as triple gate Enable Pin and connect under
Pull-up resistor, the colelctor electrode of the back production photoelectric coupling switch in sound state back production unit A is electrically.
Certainly, need to emphasize at this, the concrete connection of circuit is to form corresponding loop, in order to enter
The detection of row signal, such as when processing unit output signal connects the outfan of output unit, can be by limit
Leakage resistance connects input anode or the negative electrode of photoelectrical coupler, and after it determines, the connection of its other end also will
Determine, only need to be when processing unit output signal, the front end of output unit can produce the signal of correspondence to rear
End is controlled exporting.Same principle, output unit may select and carries out at emitter stage or colelctor electrode
Output, similar situation is also adapted in sound state back production unit, and therefore, physical circuit does not repeats them here.
Control system based on the present embodiment middle orbit traffic safety control circuit, described system includes: benchmark
Signal generation unit, processing unit, output unit, sound state back production unit, wherein, described processing unit
Including detecting pulses generation module, output module, short-time pulse decoder module and static decoder module in short-term,
Rail safety control system execution following steps:
Described reference signal generation unit produces a square-wave signal；
The described pulses generation module of detection in short-term is at described square-wave signal edge (rising edge or trailing edge)
Produce the shorter detection pulse in short-term of persistent period；
Described processing module couples the most in the output signal according to the condition selecting being currently needed for output
Detection pulse；
The back production signal of sound state back production unit collection is decoded by short-time pulse decoder module, detects back production
Whether signal comprises and detects pulse in short-term, to determine whether output circuit sticks together；
The back production signal of sound state back production unit collection is solved by static decoder module according to described square-wave signal
Code, confirms that the pulse signal of detection in short-term comprised in back production signal within a complete cycle is corresponding with output
Dynamic pulse signal whether consistent, to confirm the normal work of circuit.
The present embodiment Reng Yi mono-tunnel two passages of output illustrate,
The effect of reference signal generation unit be produce dutycycle be that the square-wave signal of 50% is for processing unit A
With processing unit B carry out synchronization check and accordingly signal produce dynamic pulse output circuit is detected.
The frequency of this signal not should the highest the most should be the not lowest, too high cause system frequently to carry out synchronization check detection, meeting
System treatment effeciency is made to reduce；Underfrequency can cause dynamic pulse output detections time interval longer, fault
Response time is oversize.This signal frequency should be not higher than 200Hz, is not less than 10Hz and is advisable, for preventing power frequency from doing
Disturbing, should not choose power frequency or the frequency values of power frequency multiple, if domestic power frequency is 50Hz, U.S.'s power frequency is 60Hz.
The safety control system operating process of the present invention is described in detail, and concrete operation step is as follows:
1, the pulses generation module of detection in short-term of processing unit (processing unit A and/or processing unit B) according to
The reference signal of reference signal generation unit produces short-time pulse detection signal；
2, processing unit (processing unit A and/or processing unit B) judges to be presently required the state of externally output
(0 or 1)；
3, the output module output of processing unit (processing unit A and/or processing unit B) has coupled arteries and veins in short-term
The logic level signal of punching detection signal is to output unit；
4, the dynamic pulse decoder module of processing unit (processing unit A and/or processing unit B) passes through sound
State back production unit (processing unit B and/or processing unit A) gathers short-time pulse detection data；
5, the static decoder module of processing unit (processing unit A and/or processing unit B) is returned by sound state
Adopt unit (processing unit B and/or processing unit A) and gather Static Detection data；
6, the dynamic Static Detection data collected are sent to another processing unit by processing unit；
7, processing unit (processing unit A and/or processing unit B) compares the inspection that two processing units collect
Survey data whether with default state consistency, the most then carry out next round operation, inconsistent then by export orientation
Safety signal.
The present invention it is critical only that processing unit, is responsible for detecting in short-term generation and the decoding of back production signal of pulse,
Can be divided into inside processing unit in short-term detection pulses generation module, output module, short-time pulse decoder module and
Static decoder module.Separately below crucial module is illustrated.
Detection pulses generation module in short-term:
This module produces one according to the Sref signal of reference signal generation unit and detects pulse in short-term.Concrete side
Method is: when rising edge or the trailing edge of Sref signal, produces the shorter detection in short-term of persistent period
Pulse.In the present embodiment, A channel produces Sref signal rising edge when and detects pulse signal in short-term,
Channel B produces Sref signal trailing edge when and detects pulse signal in short-term.Short-time pulse detection signal with
Phase relation between reference signal Sref is as shown in Figure 2.In figure, T is cycle reference signal, and Ti is in short-term
The persistent period of detection pulse signal.Ti is a parameter the most crucial, selects inappropriate value to cause
The misoperation (when such as excitation picks up, loss of excitation falls) of external relay, Ti is typically based on outside actual connection
Relay selects, and generally should be smaller than 1ms.In Fig. 2, S1, S2 are that A channel detects pulse letter in short-term
Number；S3, S4 are that channel B detects pulse signal in short-term.
Output module:
Output module couples in the output signal according to the condition selecting being currently needed for output and detects signal accordingly,
In the present embodiment, concrete principles in coupling is:
If externally exporting logical one, i.e. need external relay excitation to pick up, then A channel output signal needs
S2 signal in Fig. 2 to be coupled, channel B output signal needs to couple the S3 signal in Fig. 2.Output electricity
Road normally works, and when not having adhesion fault to occur, the output signal of A channel and channel B is as shown in Figure 3.
In figure, OUTA is A channel output signal, and OUTB is channel B output signal.
If externally exporting logical zero, i.e. need external relay loss of excitation to fall, then A channel output signal needs
S1 signal in Fig. 2 to be coupled, channel B output signal needs to couple the S4 signal in Fig. 2.Output electricity
Road normally works, and when not having adhesion fault to occur, the output signal that A channel and B lead to is as shown in Figure 4.Figure
Middle OUTA is A channel output signal, and OUTB is channel B output signal.
Dynamic pulse decoder module:
The effect of dynamic pulse decoder module is to be decoded back production signal, in order to processing unit confirms output
Whether circuit there occurs adhesion fault.
As shown in Figure 1 circuit understand, A channel back production electric circuit inspection be whether channel B output circuit occurs
Adhesion, and channel B back production electric circuit inspection be whether A channel output circuit sticks together.According to Fig. 3 and
Fig. 4, A channel should carry out short-time pulse detection when the trailing edge of reference signal, and channel B should be in reference
Short-time pulse detection is carried out during the rising edge of signal.
Dynamic pulse decoder module is described in detail as a example by A channel by the present embodiment.The dynamic arteries and veins of A channel
Rush decoder module as shown in Figure 5.The Enable Pin that processing unit controls triple gate by output OUTA signal is adopted
The presence or absence of collection channel B short-time pulse, OUTA signal is the dynamic pulse signal with coding information, if
Processing unit is able to detect that the dynamic pulse corresponding with OUTA in the time window residing for short-time pulse
Signal, then it is assumed that short-time pulse detection is passed through, otherwise short-time pulse detection is not passed through.OUTA signal and B
(channel B output signal correspondence is the most defeated as shown in Figure 6 for relation between multi-channel output signal and reference signal
Go out logical one), for convenience of description, in figure, the short pulse signal of channel B output amplifies.Channel B
Cleaning Principle is identical with A channel, repeats no more here.Detection pulse herein can select 8bit, 16bit
Or 32bit encodes signal, it is also possible to coding signal followed by CRC check code.In order to prevent passage
Between interfere, it is also possible to different passage is used different coding signals.
Static decoder module:
Static decoder module back production signal is decoded according to cycle reference signal, in order to confirm output electricity
The actual output on road is the most consistent with expection output.The present embodiment still enters as a example by A channel static state decoder module
Row explanation.Back production circuit sees Fig. 5.Processing unit controls the enable of triple gate by output OUTA signal
End gathers the presence or absence of channel B output signal, and OUTA signal is the dynamic pulse signal with coding information,
If processing unit is able to detect that corresponding with OUTA dynamic in a complete cycle reference signal
Pulse signal, then it is assumed that actual output is consistent with expection output, otherwise it is assumed that actual output is with expection output not
Unanimously.Relation between OUTA signal and channel B output signal and reference signal (B as shown in Figure 7
Multi-channel output signal correspondence externally exports logical one).The Cleaning Principle of channel B is identical with A channel, here
Repeat no more.Detection pulse herein can select 8bit, 16bit or 32bit to encode signal, it is also possible to
Coding signal is followed by upper CRC check code.In order to prevent interfering between passage, it is also possible to different
Passage uses different coded systems.Static decoder module it is critical that no matter OUTA signal uses
Which kind of coded system, the bit wide of every bit coding signal is significantly larger than the width (more than 4 times) detecting pulse in short-term,
And processing unit to be avoided when carrying out signal sampling detecting burst length window in short-term.
By arranging sound state back production unit in track transport control circuit so that processing unit can be to defeated
The result gone out can carry out back production contrast, thus determines the control of circuit, improves the accuracy of whole circuit.
Pulse is detected in short-term by setting at the edge of square-wave signal (rising edge or trailing edge), and by this inspection
Survey signal to coupled to export in control signal, then rear end utilizes processing unit, and this detects pulse signal in short-term and carries out
Decoding detection contrast, decodes principle of contrast according to difference, the fault detect of circuit can be determined be relay
Device adhesion or circuit cannot export, prevents fault accumulation and mistake output, improves security of system, and
And circuit is simple, reliability is high.
It is emphasized that protection scope of the present invention is including but not limited to above-mentioned detailed description of the invention.Should
Point out, for a person skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make
Going out some deformation and improvement, these also should be considered to belong to protection scope of the present invention.
Claims (5)
1. Static output adds a track traffic Safety output system for static dynamic pulse detection, including security control
Circuit, it is characterised in that: described safety control circuit includes the safety relay for controlling corresponding signal equipment
Device, described safety relay is controlled by control unit, and described safety control circuit at least includes two
The control unit of passage, each channel control unit includes that a processing unit is corresponding with described processing unit
And connect output unit and a sound state back production unit, the described processing unit of described safety relay
Including detecting pulses generation module, short-time pulse decoder module and static decoder module in short-term, described safety control
Circuit processed also includes the reference signal generation unit for providing reference signal to described control unit；Each logical
The output unit in road includes one for the output photoelectric coupled switch driving relay, the sound of each passage
State back production unit includes a triple gate and provides the back production light thermocouple of signal to described triple gate Enable Pin
Combination switch, the input anode tap electrical connection processing unit of output photoelectric coupled switch, output photoelectric coupled switch
Input cathode terminal electrically, the output collector terminal of output photoelectric coupled switch connects VCC, exports light
The output emitter terminal electrical connection relay of electric coupling switch electrically connects the input of back production photoelectric coupling switch simultaneously
Anode, the input minus earth of back production photoelectric coupling switch, the current collection of back production photoelectric coupling switch is as tri-state
Door Enable Pin and connect pull-up resistor, the grounded emitter of back production photoelectric coupling switch.
Track traffic Safety output system the most according to claim 1, it is characterised in that: output photoelectric couples
The input cathode terminal electrical connection processing unit of switch, the input anode tap electrical connection electricity of output photoelectric coupled switch
Source VCC, the output collector terminal of output photoelectric coupled switch connects ground, the output of output photoelectric coupled switch
Emitter terminal electrical connection relay electrically connects the input negative electrode of back production photoelectric coupling switch, back production light thermocouple simultaneously
The input anode of combination switch meets VCC, and the electric Enable Pin as triple gate of back production photoelectric coupling switch emitter stage is also
Connecting pull down resistor, the colelctor electrode of back production photoelectric coupling switch is electrically.
Track traffic Safety output system the most according to claim 1, it is characterised in that: rail safety controls
System execution following steps:
Described reference signal generation unit produces a square-wave signal；
The described pulses generation module of detection in short-term produces a persistent period relatively in the edge of described square-wave signal
Short detection pulse in short-term；
Described processing unit couples the most in the output signal according to the condition selecting being currently needed for output
Detection pulse；
The back production signal of sound state back production unit collection is decoded by short-time pulse decoder module, detection back production letter
Whether comprise in number and detect pulse in short-term, to determine whether output circuit sticks together；
The back production signal of sound state back production unit collection is solved by static decoder module according to described square-wave signal
Code, confirms that the pulse signal of detection in short-term comprised in back production signal within a complete cycle is corresponding with output
Dynamic pulse signal whether consistent, to confirm the normal work of circuit.
Track traffic Safety output system the most according to claim 3, it is characterised in that: described reference signal is produced
It is the square-wave signal of 50% that raw unit produces dutycycle.
Track traffic Safety output system the most according to claim 4, it is characterised in that: described square-wave signal
Frequency is f, 10Hz≤f≤200Hz.
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| CN201410489955.8A CN104386091B (en) | 2014-09-23 | 2014-09-23 | A kind of track traffic safety control circuit and system |
| CN201610309006.6A CN105946902B (en) | 2014-09-23 | 2014-09-23 | A kind of Static output adds the track traffic Safety output system of static dynamic pulse detection |
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| CN107380209A (en) * | 2017-08-10 | 2017-11-24 | 浙江众合科技股份有限公司 | For controlling the detection circuit of goat |
| CN110850773A (en) * | 2019-11-14 | 2020-02-28 | 北京和利时系统工程有限公司 | Signal acquisition method and device, computer storage medium and electronic equipment |
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| CN105187049B (en) * | 2015-07-21 | 2018-07-31 | 北京佳讯飞鸿电气股份有限公司 | The dynamic acquisition circuit of fault-safety principle and the device of fault-safety principle |
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| CN113562017B (en) * | 2021-08-19 | 2023-02-28 | 中铁二十四局集团上海电务电化有限公司 | Railway turnout interlocking control system |
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| FR3092951A1 (en) | 2019-02-15 | 2020-08-21 | Alstom Transport Technologies | Safety solid state relay cubicle and associated solid state relay cubicle |
| CN110850773A (en) * | 2019-11-14 | 2020-02-28 | 北京和利时系统工程有限公司 | Signal acquisition method and device, computer storage medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104386091B (en) | 2016-06-22 |
| CN104386091A (en) | 2015-03-04 |
| CN105946902B (en) | 2017-10-10 |
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