Stable power supply system for monitoring iron-related engineering

By designing batteries, photovoltaic power supply units and power monitoring units in the monitoring equipment of iron-related engineering, automatic switching and charging when the mains fail or the battery power is insufficient is achieved, the problem of interruption in power supply of the monitoring equipment is solved, and the stability and sustainability of railway monitoring are ensured.

CN223141588UActive Publication Date: 2025-07-22CHINA RAILWAY NO 8 ENG GRP CO LTD
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Patent Information

Application Number
CN202421610883.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-07-22
Estimated Expiration
2034-07-09

AI Technical Summary

Technical Problem

In railway-related projects, when the mains failure cannot be recovered in time and the battery power is insufficient, the power supply of the monitoring equipment will be interrupted, resulting in the real-time monitoring of the railway stopping.

Method used

A stable power supply system is designed, including a battery, a photovoltaic power supply unit and a power monitoring unit. By remotely monitoring the battery's power, it automatically switches to photovoltaic power supply when the power is less than 30%. The battery is charged by using solar panels, providing three power guarantee modes, and real-time monitoring of the power supply method and power.

Benefits of technology

It greatly improves the stability of the power supply for monitoring projects for iron-related projects, ensures continuous power supply of monitoring equipment when the mains fail or the battery power is insufficient, and ensures real-time monitoring of railway deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of railway engineering, and discloses a stable power supply system for railway engineering monitoring, which comprises a control unit, a filter II connected with monitoring equipment for monitoring railway conditions in real time, a filter I connected with commercial power, and a battery and a photovoltaic power supply unit for realizing standby power supply for the monitoring equipment, according to the utility model, through the design of the battery, the photovoltaic power supply unit and the electric quantity monitoring unit, the dispatching room remotely monitors the electric quantity of the storage battery, if the conditions that the commercial power cannot be recovered and the electric quantity of the storage battery is less than 30% occur, the photovoltaic power supply unit is automatically switched, and the electric quantity of the storage battery can be automatically monitored. The storage battery is charged through the solar panel and the matched power supply equipment, three power supply guarantee modes are provided, the power supply mode and the electric quantity are remotely monitored in real time in the power supply process, and the stability of the power supply for iron-related engineering monitoring is guaranteed to a great extent.
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Description

Technical Field

[0001] The utility model relates to the technical field of railway-related engineering, and particularly relates to a stable power supply system for railway-related engineering monitoring. Background Technique

[0002] A railway-related project is a construction project that crosses or connects with a railway. A railway-related project refers to a construction project invested or jointly invested by local governments, enterprises, institutions, etc., that crosses or connects with a railway and is implemented within the railway line safety protection area or railway boundary, which affects railway transportation organization or endangers railway operation safety.

[0003] To ensure the construction safety of railway-related projects, it is necessary to continuously monitor the railway displacement and timely grasp the railway deformation situation. Therefore, this uninterruptible power supply system is designed.

[0004] An uninterruptible power supply for railway-related engineering monitoring is an uninterruptible power supply containing an energy storage device. It is mainly used to provide an uninterruptible power supply for automated monitoring robots. When the mains input is normal, the power supply system stabilizes the mains power and supplies it to the load for use. At this time, the power supply system is an AC voltage stabilizer, and at the same time, it also charges the lithium battery in the system; when the mains power is interrupted (accident power outage), the power supply system immediately converts the DC electrical energy of the battery through an inverter switching method to continue supplying 220V alternating current to the load, so that the load can maintain normal operation and protect the load software and hardware from damage.

[0005] However, if the mains power fails and cannot be restored in time, and the battery power is insufficient, the power supply of the monitoring equipment (robot) will be interrupted, and the real-time monitoring of the railway will stop; therefore, we need to propose a stable power supply system for railway-related engineering monitoring. Content of the Utility Model

[0006] The purpose of the utility model is to provide a stable power supply system for railway-related engineering monitoring. Through the design of a battery, a photovoltaic power supply unit and a power quantity monitoring unit, the dispatching room remotely monitors the battery power. If the mains power cannot be restored and the battery power is less than 30%, it will automatically switch to the photovoltaic power supply unit, and the battery will be charged through the solar panel and supporting power supply equipment. Three power supply guarantee modes are provided, and the power supply method and power quantity are remotely monitored in real time during the power supply process, which greatly ensures the stability of the power supply for railway-related engineering monitoring, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: a stable power supply system for monitoring railway-related projects, including a control unit, a second filter connected to a monitoring device for real-time monitoring of railway conditions, a first filter connected to the commercial power, as well as a battery and a photovoltaic power supply unit for providing backup power to the monitoring device. A switch three is connected to the second filter, a switch one and a switch two are respectively connected to the first filter. A bidirectional diode is connected between the switch one and the switch three. One end of the switch two is respectively connected to a rectifier and a first transformer. One end of the first transformer is connected to a charger, and one end of the charger is connected to a transistor;

[0008] An inverter is connected to the control unit. A second transformer is connected between the inverter and one end of the switch three. The connection terminals of the rectifier and the transistor are connected to the inverter. The input end of the battery is connected to a power monitoring unit connected to the dispatching room. The output end of the battery is connected to a switch four. One end of the switch four and the photovoltaic power supply unit are both connected to the charger.

[0009] Preferably, the power monitoring unit includes an operational amplifier chip U1A, an operational amplifier chip U1B, an operational amplifier chip U1C, a triode Q1, and a light-emitting diode LED. A resistor R9 is connected to the 2nd pin of the operational amplifier chip U1A. A resistor R10 is connected to the 1st pin of the operational amplifier chip U1B. A resistor R11 is connected to the 14th pin of the operational amplifier chip U1C. One ends of the resistor R9, the resistor R10, and the resistor R11 are connected. A resistor R12 is connected between the 14th pin of the operational amplifier chip U1C and the base of the triode Q1. A resistor R3, a zener diode D1, and a resistor R14 are connected between the emitter of the triode Q1 and the 2nd pin of the light-emitting diode LED. The 2nd pin of the light-emitting diode LED is connected to the collector of the triode Q1.

[0010] Preferably, the 5th pin of the operational amplifier chip U1A, the 7th pin of the operational amplifier chip U1B, and the 9th pin of the operational amplifier chip U1C are connected. A resistor R3 and a resistor R4 are respectively connected to the 4th pin of the operational amplifier chip U1A. A resistor R1 and a resistor R2 are respectively connected to the 5th pin of the operational amplifier chip U1A. A resistor R5 and a resistor R6 are respectively connected to the 6th pin of the operational amplifier chip U1B. A resistor R7 and a resistor R are respectively connected to the 8th pin of the operational amplifier chip U1C.

[0011] Preferably, the photovoltaic power supply unit includes a terminal block J9, a terminal block J10, a diode D11 and a MOS transistor Q3 connected in parallel, a diode D2 and a MOS transistor Q4 connected in parallel, a diode D3 and a MOS transistor Q5 connected in parallel, a diode D4 and a MOS transistor Q6 connected in parallel. A capacitor C9 is connected between the first pin and the second pin of the terminal block J9. One end of the capacitor C9 is connected to the drain of the MOS transistor Q3, and the other end of the capacitor C9 is connected to the source of the MOS transistor Q4.

[0012] Preferably, a capacitor C13, a capacitor C12, a capacitor C11 and a capacitor C10 connected in parallel are connected between the first pin and the second pin of the terminal block J10. An inductor L1 is connected to the first pin of the terminal block J10. One end of the inductor L1 is connected to the connection terminal between the source of the MOS transistor Q5 and the drain of the MOS transistor Q6. The diode D11 is connected to the diode D3, and the diode D2 is connected to the diode D4.

[0013] Preferably, it further includes a waveform detection unit connected to the inverter. The waveform detection unit includes an operational amplifier chip U2A and an operational amplifier chip U2B. A diode D10 is connected between the sixth pin and the seventh pin of the operational amplifier chip U2A. A diode D20 is connected between the seventh pin of the operational amplifier chip U2A and the third pin of the operational amplifier chip U2B. A resistor R100 is connected between the sixth pin of the operational amplifier chip U2A and the second pin of the operational amplifier chip U2B. The first pin and the second pin of the operational amplifier chip U2B are connected.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Through the design of the battery, the photovoltaic power supply unit and the power quantity monitoring unit, the dispatching room remotely monitors the battery power. If the mains power cannot be restored and the battery power is less than 30%, it will automatically switch to the photovoltaic power supply unit, and the battery will be charged through the solar panel and the supporting power supply equipment, providing three power supply guarantee modes. During the power supply process, the power supply method and the power quantity are remotely monitored in real time, which greatly ensures the stability of the power supply for the monitoring of the railway-related project. Description of the Drawings

[0016] Figure 1 It is the circuit diagram of the power quantity monitoring unit of the present utility model;

[0017] Figure 2 It is the circuit diagram of the photovoltaic power supply unit of the present utility model;

[0018] Figure 3 It is the circuit diagram of the waveform detection unit of the present utility model;

[0019] Figure 4 It is the structural block diagram of the present utility model.

[0020] In the figure: 1. Filter 1; 2. Switch 1; 3. Switch 2; 4. Transformer 1; 5. Rectifier; 6. Charger; 7. Transistor; 8. Inverter; 9. Transformer 2; 10. Filter 2; 11. Switch 3; 12. Bidirectional diode; 13. Power quantity monitoring unit; 14. Battery; 15. Switch 4; 16. Photovoltaic power supply unit; 17. Control unit; 18. Waveform detection unit. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-4 , the present invention provides a technical solution: a stable power supply system for monitoring of railway-related projects, including a control unit 17, a filter 2 10 connected to a monitoring device for real-time monitoring of railway conditions, a filter 1 1 connected to the commercial power, and a battery 14 and a photovoltaic power supply unit 16 for providing backup power supply for the monitoring device. A switch 3 11 is connected to the filter 2 10, a switch 1 2 and a switch 2 3 are respectively connected to the filter 1 1, a bidirectional diode 12 is connected between the switch 1 2 and the switch 3 11, one end of the switch 2 3 is respectively connected to a rectifier 5 and a transformer 1 4, one end of the transformer 1 4 is connected to a charger 6, and one end of the charger 6 is connected to a transistor 7;

[0023] An inverter 8 is connected to the control unit 17, a transformer 2 9 is connected between the inverter 8 and one end of the switch 3 11, the connection terminals of the rectifier 5 and the transistor 7 are connected to the inverter 8, the input end of the battery 14 is connected to a power quantity monitoring unit 13 connected to the dispatching room, the output end of the battery 14 is connected to a switch 4 15, and one end of the switch 4 15 and the photovoltaic power supply unit 16 are both connected to the charger 6.

[0024] Among them, the filter 1 1 and the rectifier 5 can convert the alternating current input from the commercial power into direct current, the inverter can convert the direct current into alternating current again, the battery 14 stores energy and maintains a normal charging voltage when the commercial power is normally supplied, and once the commercial power supply is interrupted, the battery immediately supplies power to the inverter 8 to ensure the AC output voltage of the power supply and maintain the continuous operation of the monitoring device.

[0025] The power monitoring unit 13 includes an operational amplifier chip U1A, an operational amplifier chip U1B, an operational amplifier chip U1C, a triode Q1, and a light-emitting diode LED. A resistor R9 is connected to the 2nd pin of the operational amplifier chip U1A, a resistor R10 is connected to the 1st pin of the operational amplifier chip U1B, and a resistor R11 is connected to the 14th pin of the operational amplifier chip U1C. One ends of the resistor R9, the resistor R10, and the resistor R11 are connected. A resistor R12 is connected between the 14th pin of the operational amplifier chip U1C and the base of the triode Q1; A resistor R3, a zener diode D1, and a resistor R14 are connected between the emitter of the triode Q1 and the 2nd pin of the light-emitting diode LED, and the 2nd pin of the light-emitting diode LED is connected to the collector of the triode Q1.

[0026] The 5th pin of the operational amplifier chip U1A, the 7th pin of the operational amplifier chip U1B, and the 9th pin of the operational amplifier chip U1C are connected. A resistor R3 and a resistor R4 are respectively connected to the 4th pin of the operational amplifier chip U1A, a resistor R1 and a resistor R2 are respectively connected to the 5th pin of the operational amplifier chip U1A, a resistor R5 and a resistor R6 are respectively connected to the 6th pin of the operational amplifier chip U1B, and a resistor R7 and a resistor R are respectively connected to the 8th pin of the operational amplifier chip U1C.

[0027] The photovoltaic power supply unit 16 includes a terminal block J9, a terminal block J10, a diode D11 and a MOS transistor Q3 connected in parallel, a diode D2 and a MOS transistor Q4 connected in parallel, a diode D3 and a MOS transistor Q5 connected in parallel, a diode D4 and a MOS transistor Q6 connected in parallel. A capacitor C9 is connected between the 1st pin and the 2nd pin of the terminal block J9. One end of the capacitor C9 is connected to the drain of the MOS transistor Q3, and the other end of the capacitor C9 is connected to the source of the MOS transistor Q4. A grounded capacitor C8 is connected to the 1st pin of the terminal block J9, and a grounded capacitor C7 is connected to the 2nd pin of the terminal block J9.

[0028] A capacitor C13, a capacitor C12, a capacitor C11, and a capacitor C10 connected in parallel are connected between the 1st pin and the 2nd pin of the terminal block J10. An inductor L1 is connected to the 1st pin of the terminal block J10. One end of the inductor L1 is connected to the connection terminal of the source of the MOS transistor Q5 and the drain of the MOS transistor Q6. The diode D11 is connected to the diode D3, and the diode D2 is connected to the diode D4.

[0029] Further, a grounded resistor R111 is connected to the source of the MOS transistor Q6, and the connection terminals of the capacitor C13, the capacitor C12, the capacitor C11, and the capacitor C10 are connected to the connection terminal of the source of the MOS transistor Q3 and the drain of the MOS transistor Q4.

[0030] It further includes a waveform detection unit 18 connected to the inverter 8. The waveform detection unit 18 includes an operational amplifier chip U2A and an operational amplifier chip U2B. A diode D10 is connected between the 6th and 7th pins of the operational amplifier chip U2A. A diode D20 is connected between the 7th pin of the operational amplifier chip U2A and the 3rd pin of the operational amplifier chip U2B. A resistor R100 is connected between the 6th pin of the operational amplifier chip U2A and the 2nd pin of the operational amplifier chip U2B. The 1st and 2nd pins of the operational amplifier chip U2B are connected. A resistor R200 is connected to the 5th pin of the operational amplifier chip U2A. A capacitor C100 connected to ground is connected to the 3rd pin of the operational amplifier chip U2B.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable power supply system for monitoring railway-related projects, characterized in that: It includes a control unit (17), a second filter (10) connected to a monitoring device for real-time monitoring of railway conditions, a first filter (1) connected to the mains power supply, as well as a battery (14) and a photovoltaic power supply unit (16) for providing backup power to the monitoring device. A third switch (11) is connected to the second filter (10). A first switch (2) and a second switch (3) are respectively connected to the first filter (1). A bidirectional diode (12) is connected between the first switch (2) and the third switch (11). One end of the second switch (3) is respectively connected to a rectifier (5) and a first transformer (4). One end of the first transformer (4) is connected to a charger (6). One end of the charger (6) is connected to a transistor (7). An inverter (8) is connected to the control unit (17). A second transformer (9) is connected between one end of the inverter (8) and one end of the third switch (11). The connection terminals of the rectifier (5) and the transistor (7) are connected to the inverter (8). An electric quantity monitoring unit (13) connected to the dispatching room is connected to the input end of the battery (14). A fourth switch (15) is connected to the output end of the battery (14). One end of the fourth switch (15) and the photovoltaic power supply unit (16) are both connected to the charger (6).

2. The stable power supply system for monitoring railway-related projects according to claim 1, wherein: The electric quantity monitoring unit (13) includes an operational amplifier chip U1A, an operational amplifier chip U1B, an operational amplifier chip U1C, a triode Q1 and a light-emitting diode LED. A resistor R9 is connected to the 2nd pin of the operational amplifier chip U1A. A resistor R10 is connected to the 1st pin of the operational amplifier chip U1B. A resistor R11 is connected to the 14th pin of the operational amplifier chip U1C. One ends of the resistor R9, the resistor R10 and the resistor R11 are connected. A resistor R12 is connected between the 14th pin of the operational amplifier chip U1C and the base of the triode Q1. A resistor R3, a zener diode D1 and a resistor R14 are connected between the emitter of the triode Q1 and the 2nd pin of the light-emitting diode LED. The 2nd pin of the light-emitting diode LED is connected to the collector of the triode Q1.

3. The stable power supply system for monitoring railway-related projects according to claim 2, characterized in that: The 5th pin of the operational amplifier chip U1A, the 7th pin of the operational amplifier chip U1B and the 9th pin of the operational amplifier chip U1C are connected. A resistor R3 and a resistor R4 are respectively connected to the 4th pin of the operational amplifier chip U1A. A resistor R1 and a resistor R2 are respectively connected to the 5th pin of the operational amplifier chip U1A. A resistor R5 and a resistor R6 are respectively connected to the 6th pin of the operational amplifier chip U1B. A resistor R7 and a resistor R are respectively connected to the 8th pin of the operational amplifier chip U1C.

4. A stable power supply system for monitoring iron-related projects according to claim 1, characterized in that: The photovoltaic power supply unit (16) includes a terminal block J9, a terminal block J10, a diode D11 and a MOS transistor Q3 connected in parallel, a diode D2 and a MOS transistor Q4 connected in parallel, a diode D3 and a MOS transistor Q5 connected in parallel, a diode D4 and a MOS transistor Q6 connected in parallel. A capacitor C9 is connected between the 1st pin and the 2nd pin of the terminal block J9. One end of the capacitor C9 is connected to the drain of the MOS transistor Q3. The other end of the capacitor C9 is connected to the source of the MOS transistor Q4.

5. The stable power supply system for monitoring railway-related projects according to claim 4, wherein: A capacitor C13, a capacitor C12, a capacitor C11 and a capacitor C10 which are connected in parallel are connected between the first pin and the second pin of the wiring terminal J10. An inductor L1 is connected to the first pin of the wiring terminal J10. One end of the inductor L1 is connected to the wiring terminal of the source electrode of the MOS transistor Q5 and the drain electrode of the MOS transistor Q6. The diode D11 is connected to the diode D3. The diode D2 is connected to the diode D4.

6. The stable power supply system for monitoring the railway-related project according to claim 1, wherein: It further includes a waveform detection unit (18) connected to an inverter (8). The waveform detection unit (18) includes an operational amplifier chip U2A and an operational amplifier chip U2B. A diode D10 is connected between the sixth pin and the seventh pin of the operational amplifier chip U2A. A diode D20 is connected between the seventh pin of the operational amplifier chip U2A and the third pin of the operational amplifier chip U2B. A resistor R100 is connected between the sixth pin of the operational amplifier chip U2A and the second pin of the operational amplifier chip U2B. The first pin and the second pin of the operational amplifier chip U2B are connected.