CN112345957A - Power supply monitoring device and method for locomotive signal host - Google Patents
Power supply monitoring device and method for locomotive signal host Download PDFInfo
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- CN112345957A CN112345957A CN202011179787.4A CN202011179787A CN112345957A CN 112345957 A CN112345957 A CN 112345957A CN 202011179787 A CN202011179787 A CN 202011179787A CN 112345957 A CN112345957 A CN 112345957A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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Abstract
A power supply monitoring device and method for a locomotive signal host belong to the technical field of safe operation of locomotive signal equipment. The invention aims to solve the problems that the power supply state of the existing locomotive signal host cannot be monitored in real time and the running safety of a locomotive is directly influenced once a fault occurs. The device comprises: the voltage monitoring module is used for monitoring a voltage signal of the power supply; the current monitoring module is used for monitoring a current signal of the power supply; the data processing module is used for judging whether the power supply is in a normal state or not according to the monitored voltage signal and the monitored current signal, and if not, sending an alarm signal; and the alarm module is used for receiving the alarm signal and giving an alarm. The invention realizes the on-line monitoring of the power supply state of the locomotive signal host.
Description
Technical Field
The invention relates to a device and a method for monitoring a power supply of a locomotive signal host, belonging to the technical field of safe operation of locomotive signal equipment.
Background
The power supply source of the cab signal vehicle-mounted equipment in the locomotive running process comprises a locomotive storage battery. The storage battery of the locomotive can generate the situation that the instantaneous voltage is too high or too low or the current is too large or too small in the power supply process, and further can cause the fault of locomotive signal vehicle-mounted equipment, so that the locomotive signal vehicle-mounted equipment can not work normally, and the driving safety is influenced. When the vehicle-mounted equipment fails, real-time judgment of power supply problems cannot be realized, the recorder can be detached for dump analysis only after the locomotive is put in storage, and the analysis data can only display instantaneous data before the failure, so that the method cannot be used for detailed failure analysis.
Therefore, the power supply method of the conventional locomotive signal main unit has the following problems:
1) the display real-time performance of the state information of the power supply is poor;
2) the state changes of the power supply voltage and the power supply current are not monitored in real time;
3) the method for analyzing the power supply fault has limited data information required by the method, and cannot better judge the real-time working state of the locomotive signal host;
4) after the power supply failure occurs, no standby power supply is used for supplying power, and the running safety of the locomotive is influenced.
Disclosure of Invention
The invention provides a device and a method for monitoring a power supply of a locomotive signal host, aiming at the problems that the state of the power supply of the existing locomotive signal host cannot be monitored in real time and the running safety of a locomotive is directly influenced once a fault occurs.
The invention relates to a power supply monitoring device for a locomotive signal host, which comprises,
a voltage monitoring module 100, configured to monitor a voltage signal of the power supply;
the current monitoring module 200 is used for monitoring a current signal of the power supply;
the data processing module 300 is configured to determine whether the power supply is in a normal state according to the monitored voltage signal and current signal, and if not, send an alarm signal;
and an alarm module 400 for receiving the alarm signal and sending an alarm.
According to the device for monitoring the power supply of the cab signal host, the method for judging whether the power supply is in a normal state by the data processing module 300 comprises the following steps:
and presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state currently when at least one of the monitored voltage signal and the monitored current signal is higher than or lower than the corresponding safety threshold.
The power supply monitoring device for the cab signal host machine also comprises,
and the power supply switching module 500 is used for controlling the power supply to be disconnected with the locomotive signal host when the power supply is in an abnormal state.
The power supply monitoring device for the cab signal host machine also comprises,
a standby power supply module 600 for providing standby power supply for the cab signal host;
the power switching module 500 is further configured to control the standby power module 600 to be connected to the cab signal host while disconnecting the power supply from the cab signal host.
The power supply monitoring device for the cab signal host machine also comprises,
the clock module 700 is used for providing a clock signal for the data processing module 300.
The power supply monitoring device for the cab signal host machine also comprises,
and a display module 800 for displaying the voltage signal and the current signal transmitted by the data processing module 300 in real time.
The power supply monitoring device for the cab signal host machine also comprises,
the storage module 900 is used for storing the voltage signal and the current signal transmitted by the data processing module 300.
The power supply monitoring device for the cab signal host machine also comprises,
a remote module 1000 for remotely transmitting the voltage signal and the current signal transmitted by the data processing module 300;
the ground server 1100 is configured to remotely receive a voltage signal and a current signal of the power supply and perform real-time early warning on the working state of the power supply.
The invention also provides a method for monitoring the power supply of the locomotive signal host, which comprises the following steps,
a step for monitoring a voltage signal of the power supply;
a step for monitoring a current signal of the power supply;
a data processing step for judging whether the power supply is in a normal state according to the monitored voltage signal and current signal, and if not, sending an alarm signal;
a step for receiving the alarm signal and issuing an alarm.
According to the method for monitoring the power supply of the cab signal host machine of the invention,
the method for judging whether the power supply is in a normal state comprises the following steps:
presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state currently when at least one of the monitored voltage signal and the monitored current signal is higher than or lower than the corresponding safety threshold;
the monitoring method further comprises the following steps:
and when the power supply is in an abnormal state, controlling the power supply to be disconnected with the locomotive signal host and to be connected with the standby power supply.
The invention has the beneficial effects that: the invention provides a method for ensuring normal power supply of a locomotive signal host device. The current power supply state is judged by monitoring the voltage and the current supplied by a power supply (a storage battery) to a locomotive signal host in real time. When the power supply voltage and current of the locomotive signal host are determined to be abnormal, the alarm can be given in real time. The invention realizes the on-line monitoring of the power supply state of the locomotive signal host, so that when a fault occurs, effective measures can be taken in time to ensure the safe operation of the locomotive and the normal use of the locomotive signal host.
Drawings
FIG. 1 is a block diagram of a power supply monitoring device for a cab signal host according to the present invention;
FIG. 2 is a flow chart of a method for monitoring the power supply of the cab signal host according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
First embodiment, referring to fig. 1, the present invention provides a monitoring device for power supply of a signal host of a locomotive, including,
a voltage monitoring module 100, configured to monitor a voltage signal of the power supply;
the current monitoring module 200 is used for monitoring a current signal of the power supply;
the data processing module 300 is configured to determine whether the power supply is in a normal state according to the monitored voltage signal and current signal, and if not, send an alarm signal;
and an alarm module 400 for receiving the alarm signal and sending an alarm. After the alarm is given out, the driver and the passengers can be prompted to carry out fault treatment in time.
The method and the device are used for monitoring the current power supply state of the power supply of the locomotive signal host in real time, and can preliminarily judge the fault condition of the power supply according to the obtained current voltage signal or current signal. For example, taking a 110V locomotive as an example (including a 74V locomotive and a 24V locomotive), the 110V locomotive has a power supply standard range of 77V to 138V, the maximum power supply voltage borne by the locomotive signal host is 138V, and if the voltage exceeds a threshold value for a long time, the power supply conversion module of the locomotive signal equipment is damaged, the locomotive signal equipment is failed, and finally, the driving safety hazard of the locomotive is caused. If the locomotive signal power supply voltage is too low, the locomotive signal cannot be started normally, and corresponding work cannot be finished. If the power supply current exceeds the bearing requirement of the locomotive signal host, the safety of the locomotive signal equipment can be damaged, so that the locomotive signal equipment is powered off to cause potential safety hazards in driving. If the supply current is insufficient, the locomotive signal equipment may have a stroboscopic phenomenon, resulting in unstable output of the locomotive signal equipment.
Through the on-line monitoring of the voltage or the current of the power supply, the alarm can be given in time when the power supply state changes so as to prompt corresponding processing on the equipment, thereby ensuring the safe operation of the locomotive.
The power supply includes a battery.
Further, as shown in fig. 1, the method for determining whether the power supply is in a normal state by the data processing module 300 includes:
presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state when at least one of the monitored voltage signal and the monitored current signal exceeds or is lower than the corresponding safety threshold.
The safety threshold value can be a range value, and when the voltage or the current is within the range value, the power supply is considered to be normal; if the voltage is out of the range value, the power supply is considered to be in failure.
Still further, as shown in fig. 1, the present embodiment further includes,
and the power supply switching module 500 is used for controlling the power supply to be disconnected with the locomotive signal host when the power supply is in an abnormal state.
Still further, as shown in fig. 1, the present embodiment further includes,
a standby power supply module 600 for providing standby power supply for the cab signal host;
the power switching module 500 is further configured to control the standby power module 600 to be connected to the cab signal host while disconnecting the power supply from the cab signal host.
The power switching module 500 is configured to control the power supply according to the determination result of the data processing module 300 on the current power supply condition, that is, after the power supply fails, the power supply can be timely cut off, and the standby power module 600 is controlled to supply power.
The embodiment provides the standby power supply, and the standby power supply can be switched to use when the original power supply of the locomotive signal equipment is in emergency power-off, so that the normal operation of the locomotive signal equipment is facilitated. In addition, when the power supply is over-voltage, over-current, under-voltage and under-current, the power supply can be switched to a standby power supply for supplying power, so that the locomotive signal equipment can work normally, and the operation safety is ensured.
Still further, as shown in fig. 1, the present embodiment further includes,
the clock module 700 is used for providing a clock signal for the data processing module 300. For example, the clock module 700 is used to provide internal work and data recording time for the data processing module 300.
Still further, as shown in fig. 1, the present embodiment further includes,
and a display module 800 for displaying the voltage signal and the current signal transmitted by the data processing module 300 in real time.
The display information of the display module 800 may further include a voltage safety threshold and a current safety threshold, so that an operator may determine the current state of the power supply according to the real-time circuit signal monitoring result.
Still further, as shown in fig. 1, the present embodiment further includes,
the storage module 900 is used for storing the voltage signal and the current signal transmitted by the data processing module 300. The memory module 900 may enable real-time recording and analysis of the voltage and current signals.
Still further, as shown in fig. 1, the present embodiment further includes,
a remote module 1000 for remotely transmitting the voltage signal and the current signal transmitted by the data processing module 300;
the ground server 1100 is configured to remotely receive a voltage signal and a current signal of the power supply and perform real-time early warning on the working state of the power supply. The ground server 1100 can realize real-time monitoring and early warning of power supply to the cab signal equipment power supply according to the voltage signal and the current signal transmitted remotely, and can detect power supply information and fault states through corresponding clients in a vehicle-mounted equipment workshop.
The working process of the present invention is explained in detail below:
in the present invention, the voltage monitoring module 100 may be connected to a voltage interface of the battery; the voltage monitoring module 100 and the current monitoring module 200 isolate and sample corresponding voltages or currents through the operational amplifier circuit, and then transmit the isolated and sampled voltages or currents to the data processing module 300.
The standby power module 600 may be a standby power UPS or a polymer battery such as a lithium battery, and the voltage and current monitoring mentioned in the apparatus of the present invention may also be applied to the standby power module 600 to ensure the normal operation of the cab signal host.
The data processing module 300 may convert the analog voltage collected by the voltage monitoring module 100 and the analog current collected by the current monitoring module 200 into corresponding digital values through the ADC chip, and then compare the digital values with a safety threshold of the digital values to obtain a determination result of the current normal state of the power supply.
The clock module 700 enables the control of time within the device.
The storage module 900 is used for collecting all monitoring data in the running process of the device, and an industrial-grade wide-temperature CF card or TF card can be adopted according to the use environment.
Both the alarm module 400 and the display module 800 can achieve the warning effect. And when the power supply fails, drivers and passengers are prompted to check the failure in time, so that the operation safety of the locomotive signal equipment is ensured. The alarm module 400 may use an indicator light alarm or a voice alarm, or may use both methods for synchronous alarm.
The surface server 1100 may count all the monitored data.
The configurable client side and the ground server 1100 perform data interaction, so that an electric operator can conveniently remotely observe the power supply state of the locomotive signal equipment, and can perform window popup prompt when the power supply voltage and current of the locomotive signal equipment are abnormal. The problem can be conveniently found by the electric operator in time.
In a second embodiment, referring to fig. 2, the present embodiment provides a method for monitoring a power supply of a signal host of a locomotive, including,
a step for monitoring a voltage signal of the power supply;
a step for monitoring a current signal of the power supply;
a data processing step for judging whether the power supply is in a normal state according to the monitored voltage signal and current signal, and if not, sending an alarm signal;
a step for receiving the alarm signal and issuing an alarm.
The method and the device monitor the current power supply state of the power supply of the locomotive signal host in real time, and can preliminarily judge the fault condition of the power supply according to the obtained current voltage signal or current signal. For example, taking a 110V locomotive as an example (including a 74V locomotive and a 24V locomotive), the 110V locomotive has a power supply standard range of 77V to 138V, the maximum power supply voltage borne by the locomotive signal host is 138V, and if the voltage exceeds a threshold value for a long time, the power supply conversion module of the locomotive signal equipment is damaged, and finally driving safety is caused. If the locomotive signal power supply voltage is too low, the locomotive signal cannot be started normally, and corresponding work cannot be finished. If the power supply current exceeds the bearing requirement of the locomotive signal host, the safety of the locomotive signal equipment can be damaged, so that the locomotive signal equipment is powered off to cause potential safety hazards in driving. If the supply current is insufficient, the locomotive signal equipment may have a stroboscopic phenomenon, resulting in unstable output of the locomotive signal equipment.
Through the on-line monitoring of the voltage or the current of the power supply, the alarm can be given in time when the power supply state changes so as to prompt corresponding processing on the equipment, thereby ensuring the safe operation of the locomotive.
The power supply includes a battery.
Further, the method for judging whether the power supply is in a normal state includes:
and presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state currently when at least one of the monitored voltage signal and the monitored current signal is higher than or lower than the corresponding safety threshold.
The safety threshold value can be a range value, and when the voltage or the current is within the range value, the power supply is considered to be normal; if the voltage is out of the range value, the power supply is considered to be in failure.
Still further, the monitoring method further comprises:
and when the power supply is in an abnormal state, controlling the power supply to be disconnected with the locomotive signal host and to be connected with the standby power supply.
And the power supply switching step controls the power supply according to the judgment result of the current power supply condition, namely, the power supply can be cut off in time after the power supply fails, and the standby power supply is controlled to supply power.
The embodiment provides the standby power supply, and the standby power supply can be switched to use when the original power supply of the locomotive signal equipment is in emergency power-off, so that the normal operation of the locomotive signal equipment is facilitated. In addition, when the power supply is over-voltage, over-current, under-voltage and under-current, the power supply can be switched to a standby power supply for supplying power, so that the locomotive signal equipment can work normally, and the operation safety is ensured.
Still further, the monitoring method further comprises: and providing a clock signal for the data processing process by adopting a clock module. Such as providing internal work and time for data processing.
Still further, the monitoring method further comprises the step of displaying the voltage signal and the current signal; the information displayed in the display step can also comprise a voltage safety threshold and a current safety threshold, so that an operator can determine the current state of the power supply according to the real-time circuit signal monitoring result.
Still further, the monitoring method further comprises the step of storing data of the voltage signal and the current signal; the step can realize real-time recording and analysis of the voltage signal and the current signal.
Still further, the monitoring method further comprises the step of remotely transmitting the voltage signal and the current signal, transmitting the signals to the ground server 1100 to perform real-time early warning of the working state of the power supply, and detecting power supply information and fault states through corresponding clients in a vehicle-mounted equipment workshop.
The specific working process of this embodiment is similar to that of the first embodiment, and is not described in detail.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A power supply monitoring device for a locomotive signal host is characterized by comprising,
the voltage monitoring module (100) is used for monitoring a voltage signal of the power supply;
the current monitoring module (200) is used for monitoring a current signal of the power supply;
the data processing module (300) is used for judging whether the power supply is in a normal state or not according to the monitored voltage signal and the monitored current signal, and if not, sending an alarm signal;
and the alarm module (400) is used for receiving the alarm signal and giving an alarm.
2. The cab signal host power supply monitoring device of claim 1,
the method for judging whether the power supply is in a normal state by the data processing module (300) comprises the following steps:
and presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state currently when at least one of the monitored voltage signal and the monitored current signal is higher than or lower than the corresponding safety threshold.
3. The cab signal host power supply monitoring device of claim 2, further comprising,
and the power supply switching module (500) is used for controlling the power supply to be disconnected with the locomotive signal host when the power supply is in an abnormal state.
4. The cab signal host power supply monitoring device of claim 3, further comprising,
the standby power supply module (600) is used for providing standby power supply for the locomotive signal host;
the power supply switching module (500) is also used for controlling the standby power supply module (600) to be connected with the locomotive signal host while the connection relation between the power supply and the locomotive signal host is disconnected.
5. The cab signal host power supply monitoring device of claim 4, further comprising,
a clock module (700) for providing a clock signal to the data processing module (300).
6. The cab signal host power supply monitoring device of claim 5, further comprising,
and the display module (800) is used for displaying the voltage signal and the current signal transmitted by the data processing module (300) in real time.
7. The cab signal host power supply monitoring device of claim 6, further comprising,
and the storage module (900) is used for storing the voltage signal and the current signal transmitted by the data processing module (300).
8. The cab signal host power supply monitoring device of claim 7, further comprising,
a remote module (1000) for remotely transmitting the voltage signal and the current signal transmitted by the data processing module (300);
and the ground server (1100) is used for remotely receiving the voltage signal and the current signal of the power supply and carrying out real-time early warning on the working state of the power supply.
9. A method for monitoring the power supply of a locomotive signal host is characterized by comprising the following steps,
a step for monitoring a voltage signal of the power supply;
a step for monitoring a current signal of the power supply;
a data processing step for judging whether the power supply is in a normal state according to the monitored voltage signal and current signal, and if not, sending an alarm signal;
a step for receiving the alarm signal and issuing an alarm.
10. The method of claim 9 wherein the step of monitoring the power supplied to the cab signal host includes the step of,
the method for judging whether the power supply is in a normal state comprises the following steps:
presetting a voltage safety threshold and a current safety threshold, and judging that the power supply is in an abnormal state currently when at least one of the monitored voltage signal and the monitored current signal is higher than or lower than the corresponding safety threshold;
the monitoring method further comprises the following steps:
and when the power supply is in an abnormal state, controlling the power supply to be disconnected with the locomotive signal host and to be connected with the standby power supply.
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Application publication date: 20210209 |