CN210376538U - Online monitoring system for hump signal equipment - Google Patents
Online monitoring system for hump signal equipment Download PDFInfo
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- CN210376538U CN210376538U CN201920923776.9U CN201920923776U CN210376538U CN 210376538 U CN210376538 U CN 210376538U CN 201920923776 U CN201920923776 U CN 201920923776U CN 210376538 U CN210376538 U CN 210376538U
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Abstract
The utility model provides a hump signal equipment on-line monitoring system, through the voltage detection circuit who sets up the current detection circuit of solenoid valve send end and relay idle contact, can be continuous, monitor the operating current of signal equipment solenoid valve and the state of each relay in real time, then confirm according to the monitoring result whether the relevant operation index of signal equipment meets the requirements, can realize the real-time supervision to signal equipment, the data record and the failure analysis of being convenient for. The utility model discloses can send the real-time data information of the signal equipment who detects for remote terminal and show and save data, subsequent data query and analysis of being convenient for.
Description
Technical Field
The utility model relates to a track traffic monitoring field, concretely relates to hump signal equipment on-line monitoring system.
Background
With the gradual realization of hump automation in marshalling stations in China, the operation scheduling efficiency of the marshalling stations is greatly improved, and the Chinese patent application with the application number of 201710471870.0 discloses a novel hump full-electronic automation system integrating control, supervision and detection, which provides a hardware foundation for the automatic operation of the marshalling stations.
However, in the routine maintenance process of the hump signal equipment, the problems in system monitoring and system maintenance are increasingly highlighted, and the following salient problems mainly exist:
1. the current real-time online monitoring of electrical parameters of signal equipment of a hump station is in a vacant state, so that early-stage fault hidden dangers of the signal equipment cannot be found in time, and when the signal equipment fails, the recorded data of the electrical parameters before and after the failure are lacked, so that the field fault positioning and the fault troubleshooting are very troublesome, and the field fault troubleshooting efficiency is seriously influenced.
2. The daily maintenance of a field work area on the signal equipment still stays at the stage of manual detection, and the electric parameters in the rapid action process of the signal equipment, such as the current of an electromagnetic valve, the starting time and the conversion time of a switch machine, and the braking time and the relieving time of a speed reducer, are lack of a test method, and the electric parameters in the action process of the signal equipment relate to whether the equipment can safely run, so that how to effectively monitor the electric parameters of the hump signal equipment in real time is a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough to a hump signal equipment on-line monitoring system is provided, concrete scheme is as follows:
a hump signal equipment on-line monitoring system comprises a current detection circuit for detecting the current of a sending end of an electromagnetic valve on signal equipment, a voltage detection circuit for detecting the voltage of a null contact of a relay on the signal equipment and a processing unit;
the processing unit comprises an analog multiplexer, a latch and a processor, the output end of the current detection circuit is connected with the processor through the analog multiplexer, and the output end of the voltage detection circuit is connected with the processor through the latch;
the processor is in communication connection with the remote terminal.
Furthermore, the current detection circuit comprises a perforated hall current transformer, and the perforated hall current transformer is connected with the output end of the current detection circuit after passing through a filter circuit and a voltage stabilizing circuit.
Further, the voltage detection circuit comprises a diode, a voltage regulator tube, a resistor and a photoelectric isolator which are sequentially connected in series, and the output end of the photoelectric isolator is used as the output end of the voltage detection circuit.
Furthermore, the output end of the voltage detection circuit is provided with a pull-up resistor.
Further, the processor is a DSP.
Further, the voltage detection circuit includes:
the DCJ voltage detection circuit is used for detecting the voltage of an idle joint of a DCJ relay on a switch of a hump signal device;
the DBJ voltage detection circuit is used for detecting the voltage of a DBJ relay idle joint on a hump signal equipment switch;
the FBJ voltage detection circuit is used for detecting the voltage of an empty contact of an FBJ relay on a hump signal equipment switch;
the brake relay voltage detection circuit is used for detecting the voltage of the idle contact of the brake relay on the hump signal equipment speed reducer;
the release relay voltage detection circuit is used for detecting the release relay idle contact voltage on the hump signal equipment speed reducer;
the brake representation relay voltage detection circuit is used for detecting the brake representation relay idle contact voltage on the hump signal equipment speed reducer;
the relieving indication relay voltage detection circuit is used for detecting the relieving indication relay idle contact voltage on the hump signal equipment speed reducer.
The utility model discloses relative prior art has outstanding substantive characteristics and the progress that is showing, specifically speaking, the utility model has the following advantages:
the utility model discloses a set up the current detection circuit that the solenoid valve sent the end and the voltage detection circuit of relay idle contact, can be continuous, monitor the operating current of signal equipment solenoid valve and the state of each relay in real time, then confirm whether the relevant operation index of signal equipment meets the requirements according to the monitoring result, can realize the real-time supervision to signal equipment, the data record and the failure analysis of being convenient for.
Meanwhile, a plurality of terminals can be arranged to be connected with the server, and information such as real-time data, historical data and alarm records of each station signal device can be remotely checked through terminal programs. The system has advanced control algorithm, high precision and complete functions, can be applied to the detection of signal equipment of the railway hump station, and meets the actual requirements of the management and the field maintenance of the signal equipment of the hump station in an electric service section, a hump workshop and a hump work area.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a circuit diagram of the current detection in embodiment 1 of the present invention;
fig. 3 is a schematic pin diagram of an analog multiplexer according to embodiment 1 of the present invention;
fig. 4 is a pin diagram of the DSP in embodiment 1 of the present invention;
fig. 5 is a circuit diagram of voltage detection in embodiment 1 of the present invention;
fig. 6 is a pin diagram of a latch according to embodiment 1 of the present invention;
fig. 7 is a pull-up resistor bank in embodiment 1 of the present invention;
fig. 8 is a schematic circuit diagram of a perforated hall current transformer in embodiment 1 of the present invention;
fig. 9 is a system block diagram of embodiment 2 of the present invention;
fig. 10 is a circuit diagram of voltage detection in embodiment 2 of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in figure 1, the utility model discloses well hump signal equipment on-line monitoring system includes solenoid valve send end current detection circuit, relay idle contact voltage detection circuit, and two kinds of detection circuitry all connect the treater, and the treater is connected with the remote terminal communication again. The following description will be made by taking two kinds of hump signal devices of a switch machine and a decelerator as examples.
Example 1
As shown in fig. 2, for the characteristics that the ZK4 electrical idle rutting machine is fast in action and the current value of the electromagnetic valve is a small-signal direct current, the current detection circuit of the sending end of the electromagnetic valve in this embodiment includes a perforated hall current transformer, and according to the safety design principle, the perforated hall current transformer is used for collecting raw data, the sampling position is as shown in fig. 8, the sending end line (i.e. the input side line) of the electromagnetic valve on the electrical idle rutting machine passes through the perforated hall current transformer, the perforated hall current transformer needs ± 12V for power supply, the output of the perforated hall current transformer is filtered and stabilized, then passes through the analog multiplexer 74HC4051, and is output to the AD port of the DSP, the collection is completed by the DSP, and the pin connection relationship between the analog multiplexer 74HC4051 and the DSP is as shown in fig. 3 and fig. 4.
As shown in fig. 5, the relay state detection on the electro-pneumatic switch machine in the present embodiment includes three voltage detection circuits, which respectively detect DCJ, DBJ, and FBJ, and use the idle contacts of the three relays to collect the real-time states thereof, that is, connect a dedicated power supply 24V + to the middle contact of the idle contact, and collect in real time whether there is 24V + on the upper and lower contacts thereof as the relay state judgment condition. The DCJ, DBJ and FBJ acquisition circuits are as shown in fig. 5, the acquisition circuits of the three relays are the same, the input ends of the three relays are isolated by a diode, a voltage regulator tube, a resistor and a photoelectric circuit, the output ends of the three relays are latched by a latch 74LVC573 and then output to the IO port of the DSP, the acquisition is completed by the DSP, and pins of the latch 74LVC573 are as shown in fig. 6.
The output ends of the three voltage detection circuits are respectively provided with pull-up resistors, in this embodiment, 3.3K × 8 pull-up resistor banks are adopted, as shown in fig. 7, and with reference to fig. 5, the pull-up resistor at the output end of the DCJ voltage detection circuit is connected with Q1 of the resistor bank, the pull-up resistor at the output end of the DBJ voltage detection circuit is connected with Q2 of the resistor bank, and the pull-up resistor at the output end of the FBJ voltage detection circuit is connected with Q3 of the resistor bank.
Principle of detection
The present embodiment utilizes the above-described circuit structure to detect the switch machine equipment, acquire the voltage and current data of the corresponding position, and process and analyze the acquired data.
Designing a starting time monitoring scheme: the start condition of the start time timing is that the DCJ starts to switch to the pole, and the end condition is that both the DBJ and the FBJ fall. The states of the DCJ, DBJ and FBJ relays are acquired at a high speed, and the starting time of each time of the electric idle rutting machine action is monitored in real time according to the starting time calculation scheme.
Designing a switching time monitoring scheme: the start condition of the switch time timing is that the switch is out of indication (i.e. both DBJ and FBJ are down), and the end condition is that the DBJ or FBJ relay is up. The relay state is represented by high-speed acquisition, and the switching time of each point switch action is monitored in real time according to the switching time calculation scheme.
And (3) safety protection design: the current of the electromagnetic valve is collected by a straight-through current transformer and is safely isolated from the tested equipment. DCJ state, DBJ state, FBJ state collection adopt the scheme of gathering relay idle joint, ensure with the safe isolation of monitored target.
The system automatically generates a standard curve of the action of each ZK4 electromagnetic valve, and the process is as follows: obtaining N continuous action curves of the current of the same ZK4 turnout solenoid valve, and extracting key characteristics of each curve: the current variation trend of the turnout starting phase, the current average value in the turnout action process, the current variation trend of the turnout action end and the time length of the turnout conversion phase. Classifying the N historical curves according to the number of the same characteristics in the 4 key characteristics, selecting the type with the largest number of the historical curves as a normal action curve, calculating the smoothness of each curve in the type one by one, selecting the normal curve with the highest smoothness as a standard curve, simultaneously recording the generation time of the standard curve, calculating the time difference between the current time and the generation time of the standard curve, and when the time difference exceeds a preset time threshold, re-executing the steps to generate a new standard curve.
The system intelligently judges whether the ZK4 equipment works normally or not according to the reported current, starting time and conversion time of the ZK4 electromagnetic valve, gives an alarm in time when the ZK4 equipment works abnormally, and positions the fault position, wherein the judgment mechanism is as follows:
1. and comparing each reported curve with a standard curve of the same turnout, if 4 key features of the standard curve are inconsistent or current abnormal mutation exists in the action process, performing current curve abnormal alarm, and prompting that the fault position is an outdoor ZK4 electromagnetic valve or an outdoor ZK4 mechanical structure.
2. The starting time of the ZK4 action exceeds a threshold value (can be set), the 'starting time abnormity alarm' is carried out, and the fault position is indicated to be outdoor to indicate a loop.
3. ZK4 transition time exceeds a threshold (settable), alarms "transition time anomaly" and indicates that the fault location is outdoors indicating a circuit or outdoor mechanical structure.
In the embodiment, the detection circuit sends the detected voltage and current to the processor, the processor can communicate with the remote terminal in a wired or wireless communication mode, and the processor sends the detected data to the remote terminal for storage, so as to serve as a data base for subsequent analysis, processing and summarization of the remote terminal. And the remote terminal can be connected with the monitoring systems of a plurality of hump stations, so that the real-time parameters, the historical parameters and the alarm information of the signal equipment in the plurality of hump stations can be remotely checked.
Example 2
As shown in fig. 9, the on-line monitoring system in this embodiment includes a voltage detection circuit at the sending end of the speed reducer, a current detection circuit of the electromagnetic valve at the sending end, and a state detection circuit of the relay, where the relay includes a brake relay, a release relay, a brake indication relay, and a release indication relay. The detection circuits are all connected with the processing unit (namely, the electrical parameter acquisition system of the speed reducer), and the electrical parameter acquisition system of the speed reducer is connected with the remote terminal through the hump signal centralized monitoring system and the server in sequence.
The current detection circuit of the electromagnetic valve sending end in this embodiment is the same as that in embodiment 1, as shown in fig. 2, the current detection circuit includes a perforated hall current transformer, and according to the safety design principle, the perforated hall current transformer is used for acquiring original data, a sending end line (i.e., an input side line) of the electromagnetic valve on the speed reducer passes through the perforated hall current transformer, the perforated hall current transformer needs to be powered by plus or minus 12V, the output of the perforated hall current transformer is filtered and stabilized, then passes through an analog multiplexer 74HC4051, and is output to an AD port of a DSP, the acquisition is completed by the DSP, and the pin connection relationship between the analog multiplexer 74HC4051 and the DSP is shown in fig. 3 and 4.
As shown in fig. 10, in the present embodiment, the relay state detection on the speed reducer includes four voltage detection circuits, which respectively detect the brake relay, the release relay, the brake indication relay, and the release indication relay, and use the idle contacts of the four relays to collect the real-time states thereof, that is, connect a dedicated power supply 24V + to the intermediate contact of the idle contact, and collect in real time whether there is 24V + on the upper and lower contacts thereof as the relay state judgment condition. The voltage acquisition circuits are as shown in fig. 10, the acquisition circuits of the four relays are the same, the input ends of the four relays are isolated from each other by a diode, a voltage regulator tube, a resistor and a photoelectric resistor, the output ends of the four relays are latched by a latch 74LVC573 and then output to the IO port of the DSP, the acquisition is completed by the DSP, and the pins of the latch 74LVC573 are as shown in fig. 6.
In this embodiment, as shown in fig. 7, in combination with fig. 10, the pull-up resistor at the output end of the voltage detection circuit of the brake relay J1 is connected to Q1 of the resistor bank, the pull-up resistor at the output end of the voltage detection circuit of the release relay J2 is connected to Q2 of the resistor bank, Q3 indicating the pull-up resistor at the output end of the voltage detection circuit of the brake relay J3 is connected to Q4 indicating the pull-up resistor at the output end of the voltage detection circuit of the relay J4 is connected to the resistor bank.
Monitoring method
1. The braking time and the release time of the speed reducer are monitored in real time, and the alarm is given in time when the time is out of limit.
2. And monitoring the voltage of the sending end of the speed reducer equipment at the distribution panel and the current of the electromagnetic valve in real time, forming a report and a curve, and timely alarming the voltage of the sending end, the current of the electromagnetic valve and abnormal sudden change.
Including braking relay, alleviating relay, braking in the reduction gear in this embodiment and showing the relay and alleviating and showing the relay, monitor the state of these relays, state monitoring design includes: the real-time states of the four relays are acquired by using the idle contacts of the four relays, namely, a special power supply 24V + is connected to the middle contact of the idle contact, whether 24V + exists on the upper contact and the lower contact of the idle contact is acquired in real time to serve as a condition for judging the states of the relays, a voltage acquisition circuit is shown in figure 10, the four relays are identical in acquisition circuit, the front ends of the four relays are isolated through a diode, a voltage regulator tube, a resistor and a photoelectric circuit, the rear ends of the four relays are latched through a latch 74LVC573 and then output to an IO port of a DSP, and the.
And determining the working state of the relay according to the voltage collection of the idle contact of each relay, thereby calculating the braking time and the buffering time of the speed reducer according to the state of each relay.
The design of the braking time algorithm comprises the following steps: the starting condition of the braking time calculation is that the braking relay is started, namely the working power supply of the braking electromagnetic valve is sent out indoors as the starting condition of the braking time, and the ending condition is that the indoor braking represents that the relay is sucked up.
The design of the time-of-remission algorithm comprises the following steps: the starting condition of the calculation of the release time is the start of the release relay, namely the indoor sending of the working power supply of the release solenoid valve is the starting condition of the release time, and the ending condition is that the indoor release indicates the suction of the relay.
The design of sending end voltage monitoring comprises: and acquiring real-time voltage information of the transmission end of the speed reducer from the power supply screen by adopting an intelligent interface.
The current monitoring design of the electromagnetic valve of the speed reducer comprises the following steps: the sampling position of the current is on the return wire supplying power to the outdoor electromagnetic valve indoors, the through Hall current transformer is adopted in the embodiment, the return wire penetrates through the center of the transformer, and the schematic diagram is shown in figure 2. The mutual inductor needs +/-12V power supply, a post-stage acquisition circuit is shown in figure 2, the output of the mutual inductor is filtered and stabilized, then the output of the mutual inductor passes through an analog multiplexer 74HC4051 and is output to an AD port of the DSP, and the DSP finishes acquisition.
The safety protection design comprises: the current of the electromagnetic valve is collected by a through Hall current transformer and is safely isolated from the tested equipment. And the brake relay, the release relay, the brake indication relay and the release indication relay are all safely collected by utilizing the relay idle contact.
Principle of judgment
According to the obtained voltage of the sending end of the speed reducer, the current of the electromagnetic valve, the braking time and the relieving time, whether the speed reducer works normally is judged, an alarm is given in time when the speed reducer works abnormally, the fault position is located, and the judgment mechanism is as follows:
1. when the voltage of the reducer sending end is monitored to exceed a threshold value (which can be set), a 'reducer sending end abnormity alarm' is carried out, and the fault position is prompted to be the output end of an indoor reducer power supply loop or a power supply screen;
2. when the voltage of the transmission end of the speed reducer is normal and the current of the electromagnetic valve exceeds a threshold value (can be set), performing 'abnormal alarm of the electromagnetic valve outside the speed reducer', and prompting that the fault position is the electromagnetic valve outside the speed reducer or the power supply loop of the electromagnetic valve;
3. when the brake time and the release time of the speed reducer are monitored to exceed a threshold value (which can be set), the abnormal alarm of the action time of the speed reducer is carried out, and the fault position is prompted to be an outdoor mechanical structure or to indicate that a loop is abnormal.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it is intended to cover all such modifications as fall within the scope of the appended claims.
Claims (6)
1. The utility model provides a hump signal equipment on-line monitoring system which characterized in that: the device comprises a current detection circuit for detecting the current of a feeding end of an electromagnetic valve on signal equipment, a voltage detection circuit for detecting the voltage of a relay idle contact on the signal equipment and a processing unit;
the processing unit comprises an analog multiplexer, a latch and a processor, the output end of the current detection circuit is connected with the processor through the analog multiplexer, and the output end of the voltage detection circuit is connected with the processor through the latch;
the processor is in communication connection with the remote terminal.
2. The on-line monitoring system of hump signaling device of claim 1, characterized in that: the current detection circuit comprises a perforated Hall current transformer, and the perforated Hall current transformer is connected with the output end of the current detection circuit after passing through a filter circuit and a voltage stabilizing circuit.
3. The on-line monitoring system of the hump signal equipment as claimed in claim 1 or 2, characterized in that: the voltage detection circuit comprises a diode, a voltage regulator tube, a resistor and a photoelectric isolator which are sequentially connected in series, and the output end of the photoelectric isolator is used as the output end of the voltage detection circuit.
4. The on-line monitoring system of hump signaling device of claim 3, characterized in that: and the output end of the voltage detection circuit is provided with a pull-up resistor.
5. The on-line monitoring system of the hump signal device as claimed in claim 4, characterized in that: the processor is a DSP.
6. The on-line monitoring system for hump signal equipment as claimed in claim 5, wherein said voltage detection circuit comprises:
the DCJ voltage detection circuit is used for detecting the voltage of an idle joint of a DCJ relay on a switch of a hump signal device;
the DBJ voltage detection circuit is used for detecting the voltage of a DBJ relay idle joint on a hump signal equipment switch;
the FBJ voltage detection circuit is used for detecting the voltage of an empty contact of an FBJ relay on a hump signal equipment switch;
the brake relay voltage detection circuit is used for detecting the voltage of the idle contact of the brake relay on the hump signal equipment speed reducer;
the release relay voltage detection circuit is used for detecting the release relay idle contact voltage on the hump signal equipment speed reducer;
the brake representation relay voltage detection circuit is used for detecting the brake representation relay idle contact voltage on the hump signal equipment speed reducer;
the relieving indication relay voltage detection circuit is used for detecting the relieving indication relay idle contact voltage on the hump signal equipment speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920923776.9U CN210376538U (en) | 2019-06-19 | 2019-06-19 | Online monitoring system for hump signal equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920923776.9U CN210376538U (en) | 2019-06-19 | 2019-06-19 | Online monitoring system for hump signal equipment |
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| CN210376538U true CN210376538U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208625A (en) * | 2019-06-19 | 2019-09-06 | 河南辉煌科技股份有限公司 | A kind of humping signal equipment on-line monitoring system and goat on-line monitoring method |
-
2019
- 2019-06-19 CN CN201920923776.9U patent/CN210376538U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208625A (en) * | 2019-06-19 | 2019-09-06 | 河南辉煌科技股份有限公司 | A kind of humping signal equipment on-line monitoring system and goat on-line monitoring method |
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