Fault detection device for redundant power supply

Abstract

The utility model provides a fault detection device of a redundant power supply, a control unit is used for detecting a fault of a first power supply or a second power supply, generating a fault indication signal and sending the fault indication signal to a display unit, and the display unit is used for carrying out corresponding acousto-optic prompt according to the fault indication signal. The state of the first power supply and the state of the second power supply are monitored in real time through the control unit, faults of any one power supply can be rapidly detected, the fault indication signal is immediately generated, and the instantaneity ensures that an administrator can know the health condition of the power supply system at the first time, so that countermeasures are taken in time. The fault detection device is provided with the display unit, corresponding acousto-optic prompt can be carried out according to the fault indication signal sent by the control unit, the fault information is more easily perceived through the visual prompt mode, an administrator can rapidly locate the problem even in a noisy or sight-limited environment, and the fault processing efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of power supply detection, and more particularly, to a fault detection device for redundant power supplies. Background Art

[0002] Once one of the two power supplies in a redundant power supply fails, the other power supply will seamlessly switch, and the system can operate without interruption. When a certain power supply unit in this dual-power redundancy configuration fails, although its ability to seamlessly switch to the standby power supply ensures the continuity of power supply, it also brings certain concealment and potential risks. Since the switching process is almost instantaneous, users often cannot directly perceive the occurrence of a power supply failure. This "silent" failure mode may cause users to long-term neglect the maintenance and inspection of the power supply system, thereby increasing the risk of larger-scale failures in the future. Existing redundant power supply systems lack intuitive fault indicators or alarm systems and cannot immediately report the status changes of power supply units to administrators, which requires administrators to rely on regular manual inspections or complex monitoring systems to identify potential problems, increasing the management difficulty and cost. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide a fault detection device for redundant power supplies to solve the problem in the prior art that the lack of fault detection for the power supply units of redundant power supplies makes it difficult to maintain and inspect the power supply system.

[0004] A fault detection device for redundant power supplies provided by the embodiments of this application, where the redundant power supply includes a first power supply and a second power supply, and the fault detection device includes: a control unit and a display unit;

[0005] The first power supply is connected to the first end of the control unit, the second power supply is connected to the second end of the control unit, the third end of the control unit is connected to the display unit, and the fourth end of the control unit is connected to the controlled device.

[0006] In the above technical solution, the control unit is used to detect a failure of the first power supply or the second power supply, generate a fault indication signal, and send the fault indication signal to the display unit. The display unit is used to perform corresponding sound and light prompts according to the fault indication signal. By the control unit monitoring the status of the first power supply and the second power supply in real time, any fault occurring in either power supply can be quickly detected, and a fault indication signal is immediately generated. This immediacy ensures that the administrator can understand the health status of the power supply system in the first place, so as to take corresponding measures in a timely manner. The fault detection device is equipped with a display unit, which can perform corresponding sound and light prompts according to the fault indication signal sent by the control unit. This intuitive prompt method makes the fault information easier to be detected. Even in a noisy or sight-restricted environment, the administrator can quickly locate the problem, improving the efficiency of fault handling. Compared with the traditional solutions that rely on manual inspections or complex monitoring systems, this fault detection device simplifies the management process, reduces the requirements for the skills of management personnel. At the same time, through automatic monitoring and alarming, the situation of fault omission or false alarm caused by human negligence is reduced, further reducing the management cost.

[0007] In some alternative embodiments, the control unit includes: a first relay, a second relay, and a programmable logic controller;

[0008] Both ends of the coil of the first relay are respectively connected to the second positive output terminal and the negative output terminal of the first power supply. The first normally open contact of the first relay is connected to the first positive output terminal of the first power supply, and the second normally open contact of the first relay is connected to the first end of the programmable logic controller;

[0009] Both ends of the coil of the second relay are respectively connected to the second positive output terminal and the negative output terminal of the second power supply. The first normally open contact of the second relay is connected to the first positive output terminal of the second power supply, and the second normally open contact of the second relay is connected to the second end of the programmable logic controller.

[0010] In some alternative embodiments, the display unit includes a touch screen; the third end of the programmable logic controller is connected to the touch screen.

[0011] In the above technical solution, the introduction of the touch screen makes user interaction more intuitive and convenient. The administrator can directly view the status of the power supply system, fault information, historical records, etc. on the touch screen, without relying on additional display devices or software. This immediate and graphical interaction method greatly improves the management efficiency.

[0012] In some alternative embodiments, the display unit includes a tower light; the fourth end of the programmable logic controller is connected to the tower light.

[0013] In the above technical solution, the tower light, as a high-brightness and multi-color warning device, can provide clear and visible fault indication in long-distance and complex environments. When the PLC detects a power failure, it can quickly attract the attention of the administrator by controlling the different colors or flashing modes of the tower light, so as to ensure that the fault can be detected and handled in time.

[0014] In some alternative embodiments, the display unit includes an emergency stop button; the fifth terminal of the programmable logic controller is connected to the emergency stop button.

[0015] In the above technical solution, the emergency stop button is an emergency stop device used to quickly cut off the power supply or stop the operation of the device in case of an emergency, so as to prevent the accident from expanding or causing more serious consequences. Integrating the emergency stop button into the display unit and controlling it through the PLC enables the administrator to immediately press the button when a serious fault or emergency is detected, realizing the emergency shutdown of the device.

[0016] In some alternative embodiments, the display unit includes a wireless communication module; the sixth terminal of the programmable logic controller is connected to the wireless communication module.

[0017] In the above technical solution, the addition of the wireless communication module enables the system to have the ability of remote monitoring and diagnosis. The administrator can view the status, fault information, historical records, etc. of the power system in real time through a remote terminal or a mobile device without having to be on-site. This remote monitoring ability not only improves the management efficiency but also reduces the operation and maintenance costs. When the PLC detects a power failure, it can send the fault information to the administrator or relevant maintenance personnel in real time through the wireless communication module. This instant notification mechanism can ensure that the administrator can respond quickly and take necessary measures to prevent the fault from further expanding or affecting the normal operation of the system.

[0018] In some alternative embodiments, the wireless communication module includes: a cellular communication module and / or a Bluetooth module and / or a WiFi module and / or a ZigBee module and / or a LoRa module and / or an NB-IoT module.

[0019] In the above technical solution, the cellular communication module includes 2G / 3G / 4G / 5G modules. These modules are based on different mobile communication network technologies and can realize the connection between the device and the mobile communication network, providing data transmission and coverage ranges at different rates. The Bluetooth module is mainly used for short-distance wireless communication and has the characteristics of low power consumption, low cost, and low latency. The WiFi module is based on wireless local area network technology and provides high-speed data transmission speed and wide coverage. The ZigBee module is a low-power, short-distance communication protocol suitable for Internet of Things applications such as sensor networks, home automation, and industrial control. The LoRa module is a long-distance, low-power wireless communication technology suitable for the requirements of long-distance transmission and low power consumption in Internet of Things applications. The NB-IoT module is based on narrowband Internet of Things technology and has the characteristics of low power consumption, wide coverage, and low cost, and is suitable for applications such as smart water meters and environmental monitoring that require wide coverage but small amounts of data.

[0020] In some alternative embodiments, both the first power supply and the second power supply are AC-DC power supplies; both the first power supply and the second power supply are used to convert 220V AC power into 24V DC power;

[0021] The positive input terminal of the first power supply is connected to the L terminal of 220V, and the negative input terminal of the first power supply is connected to the N terminal of 220V; the positive input terminal of the second power supply is connected to the L terminal of 220V, and the negative input terminal of the second power supply is connected to the N terminal of 220V.

[0022] In some alternative embodiments, a first circuit breaker and a second circuit breaker are further included;

[0023] The L terminal of 220V is connected to the positive input terminals of the first power supply and the second power supply after passing through the first circuit breaker; the N terminal of 220V is connected to the negative input terminals of the first power supply and the second power supply after passing through the second circuit breaker.

[0024] In the above technical solution, the circuit breaker is an important component for circuit protection and can automatically cut off the power supply when abnormal conditions such as overload and short circuit occur in the circuit, thereby protecting the circuit and equipment from damage. Adding the first circuit breaker and the second circuit breaker to the redundant power supply system can protect the positive input terminal and the negative input terminal respectively, ensuring that the power supply can be cut off in time when an abnormality occurs at the power supply input terminal and preventing the spread of faults.

[0025] In some alternative embodiments, the controlled device includes at least one relay and / or at least one solenoid valve.

[0026] In the above technical solution, the PLC controls the corresponding controlled device to be turned on or off by controlling the relay or the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a functional module diagram of a fault detection device for a redundant power supply provided by an embodiment of the present application;

[0029] Figure 2 It is a connection structure diagram of a fault detection device for a redundant power supply provided by an embodiment of the present application.

[0030] Icons: 1 - First power supply, 2 - Second power supply, 3 - Control unit, 31 - First relay, 32 - Second relay, 33 - Programmable logic controller, 4 - Display unit, 41 - Touch screen, 42 - Tower light, 43 - Emergency stop button, 44 - Wireless communication module, 5 - Controlled device. Specific embodiments

[0031] The following will describe the technical solutions in the embodiments of the present application in combination with the drawings in the embodiments of the present application.

[0032] Please refer to Figure 1 , Figure 1 It is a functional module diagram of a fault detection device for a redundant power supply provided by an embodiment of the present application. The redundant power supply includes a first power supply 1 and a second power supply 2. The fault detection device includes: a control unit 3 and a display unit 4;

[0033] The first power supply 1 is connected to the first end of the control unit 3, the second power supply 2 is connected to the second end of the control unit 3, the third end of the control unit 3 is connected to the display unit 4, and the fourth end of the control unit 3 is connected to the controlled device 5.

[0034] In the embodiments of the present application, the control unit 3 is used to detect a failure of the first power supply 1 or the second power supply 2, generate a fault indication signal, and send the fault indication signal to the display unit 4. The display unit 4 is used to perform corresponding sound and light prompts according to the fault indication signal. By the control unit 3 monitoring the status of the first power supply 1 and the second power supply 2 in real time, it can quickly detect the faults occurring in any one of the power supplies and immediately generate a fault indication signal. This immediacy ensures that the administrator can understand the health status of the power supply system in the first time, so as to take corresponding measures in time. The fault detection device is equipped with the display unit 4, which can perform corresponding sound and light prompts according to the fault indication signal sent by the control unit 3. This intuitive prompt method makes the fault information easier to be detected. Even in a noisy or limited vision environment, the administrator can quickly locate the problem, improving the efficiency of fault handling. Compared with the traditional solutions that rely on manual inspections or complex monitoring systems, the fault detection device simplifies the management process, reduces the requirements for the skills of management personnel. At the same time, through automatic monitoring and alarming, it reduces the missed reports or false alarms of faults caused by human negligence, further reducing the management cost.

[0035] Specifically, please refer to Figure 2 , Figure 2 which is a connection structure diagram of a fault detection device for a redundant power supply provided by the embodiments of the present application.

[0036] In some alternative embodiments, the control unit 3 includes: a first relay 31, a second relay 32, and a programmable logic controller 33;

[0037] Both ends of the coil of the first relay 31 are respectively connected to the second positive output terminal and the negative output terminal of the first power supply 1. The first normally open contact of the first relay 31 is connected to the first positive output terminal of the first power supply 1, and the second normally open contact of the first relay 31 is connected to the first end of the programmable logic controller 33;

[0038] Both ends of the coil of the second relay 32 are respectively connected to the second positive output terminal and the negative output terminal of the second power supply 2. The first normally open contact of the second relay 32 is connected to the first positive output terminal of the second power supply 2, and the second normally open contact of the second relay 32 is connected to the second end of the programmable logic controller 33.

[0039] In some alternative embodiments, the display unit 4 includes a touch screen 41; the third end of the programmable logic controller 33 is connected to the touch screen 41.

[0040] In the embodiments of the present application, the introduction of the touch screen 41 makes user interaction more intuitive and convenient. The administrator can directly view the status of the power supply system, fault information, historical records, etc. on the touch screen 41 without relying on additional display devices or software. This immediate and graphical interaction method greatly improves the management efficiency.

[0041] In some alternative embodiments, the display unit 4 includes a tower light 42; a fourth terminal of the programmable logic controller 33 is connected to the tower light 42.

[0042] In the embodiments of the present application, the tower light 42, as a high-brightness and multi-color warning device, can provide clear and visible fault indication in long-distance and complex environments. When the PLC detects a power failure, it can quickly attract the attention of the administrator by controlling the different colors or blinking modes of the tower light 42, so as to ensure that the fault can be detected and processed in time.

[0043] In some alternative embodiments, the display unit 4 includes an emergency stop button 43; a fifth terminal of the programmable logic controller 33 is connected to the emergency stop button 43.

[0044] In the embodiments of the present application, the emergency stop button 43 is an emergency stop device used to quickly cut off the power supply or stop the operation of the device in case of an emergency, so as to prevent the accident from expanding or causing more serious consequences. Integrating the emergency stop button 43 into the display unit 4 and controlling it through the PLC enables the administrator to immediately press the button when discovering a serious fault or an emergency, realizing the emergency shutdown of the device.

[0045] In some alternative embodiments, the display unit 4 includes a wireless communication module 44; a sixth terminal of the programmable logic controller 33 is connected to the wireless communication module 44.

[0046] In the embodiments of the present application, the addition of the wireless communication module 44 enables the system to have the ability of remote monitoring and diagnosis. The administrator can view the status, fault information, historical records, etc. of the power system in real time through a remote terminal or a mobile device without having to be on-site. This remote monitoring ability not only improves the management efficiency but also reduces the operation and maintenance costs. When the PLC detects a power failure, it can send the fault information to the administrator or relevant maintenance personnel in real time through the wireless communication module 44. This instant notification mechanism can ensure that the administrator can quickly respond and take necessary measures to prevent the fault from further expanding or affecting the normal operation of the system.

[0047] In some alternative embodiments, the wireless communication module 44 includes: a cellular communication module and / or a Bluetooth module and / or a WiFi module and / or a ZigBee module and / or a LoRa module and / or an NB-IoT module.

[0048] In the embodiments of the present application, the cellular communication module includes 2G / 3G / 4G / 5G modules. These modules are based on different mobile communication network technologies and can achieve the connection between the device and the mobile communication network, providing data transmission at different rates and coverage ranges. The Bluetooth module is mainly used for short-distance wireless communication and has the characteristics of low power consumption, low cost, and low latency. The WiFi module is based on wireless local area network technology and provides high-speed data transmission speed and wide coverage range. The ZigBee module is a low-power, short-distance communication protocol suitable for Internet of Things applications such as sensor networks, home automation, and industrial control. The LoRa module is a long-distance, low-power wireless communication technology suitable for the requirements of long-distance transmission and low power consumption in Internet of Things applications. The NB-IoT module is a narrowband Internet of Things technology with characteristics such as low power consumption, wide coverage, and low cost, and is suitable for applications such as smart water meters and environmental monitoring that require large-scale coverage but small amounts of data.

[0049] In some alternative embodiments, the first power supply 1 and the second power supply 2 are both AC-to-DC power supplies; the first power supply 1 and the second power supply 2 are both used to convert 220V alternating current into 24V direct current;

[0050] The positive input terminal of the first power supply 1 is connected to the L terminal of 220V, and the negative input terminal of the first power supply 1 is connected to the N terminal of 220V; the positive input terminal of the second power supply 2 is connected to the L terminal of 220V, and the negative input terminal of the second power supply 2 is connected to the N terminal of 220V.

[0051] In some alternative embodiments, it further includes a first circuit breaker and a second circuit breaker; the L terminal of 220V is connected to the positive input terminals of the first power supply 1 and the second power supply 2 after passing through the first circuit breaker; the N terminal of 220V is connected to the negative input terminals of the first power supply 1 and the second power supply 2 after passing through the second circuit breaker.

[0052] In the embodiments of the present application, the circuit breaker is an important component for circuit protection and can automatically cut off the power supply when abnormal conditions such as overload and short circuit occur in the circuit, thereby protecting the circuit and equipment from damage. Adding the first circuit breaker and the second circuit breaker to the redundant power supply system can protect the positive input terminal and the negative input terminal respectively, ensuring that the power supply can be cut off in time when an abnormality occurs at the power supply input terminal and preventing the spread of faults.

[0053] In some alternative embodiments, the controlled device 5 includes at least one relay and / or at least one solenoid valve.

[0054] In the embodiments of the present application, the PLC controls the corresponding controlled device 5 to be turned on or off by controlling the relay or the solenoid valve.

[0055] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical or other forms.

[0056] In addition, the units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0057] Furthermore, in each embodiment of the present application, the various functional modules can be integrated together to form an independent part, or each module can exist alone, or two or more modules can be integrated to form an independent part.

[0058] In this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0059] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fault detection device for redundant power supplies, characterized in that, The redundant power supply includes a first power supply and a second power supply, and the fault detection device includes: a control unit and a display unit; The first power supply is connected to the first end of the control unit, the second power supply is connected to the second end of the control unit, the third end of the control unit is connected to the display unit, and the fourth end of the control unit is connected to the controlled device.

2. The fault detection device according to claim 1, wherein The control unit includes: a first relay, a second relay and a programmable logic controller; Both ends of the coil of the first relay are respectively connected to the second positive output terminal and the negative output terminal of the first power supply. The first normally open contact of the first relay is connected to the first positive output terminal of the first power supply, and the second normally open contact of the first relay is connected to the first end of the programmable logic controller; Both ends of the coil of the second relay are respectively connected to the second positive output terminal and the negative output terminal of the second power supply. The first normally open contact of the second relay is connected to the first positive output terminal of the second power supply, and the second normally open contact of the second relay is connected to the second end of the programmable logic controller.

3. The fault detection device according to claim 2, wherein The display unit includes a touch screen; the third end of the programmable logic controller is connected to the touch screen.

4. The fault detection device according to claim 2, characterized in that, The display unit includes a tower light; the fourth end of the programmable logic controller is connected to the tower light.

5. The fault detection device according to claim 2, characterized in that, The display unit includes an emergency stop button; the fifth end of the programmable logic controller is connected to the emergency stop button.

6. The fault detection device according to claim 2, characterized in that, The display unit includes a wireless communication module; the sixth end of the programmable logic controller is connected to the wireless communication module.

7. The fault detection device according to claim 6, characterized in that, The wireless communication module includes: a cellular communication module and / or a Bluetooth module and / or a WiFi module and / or a ZigBee module and / or a LoRa module and / or an NB-IoT module.

8. The fault detection device according to claim 1, characterized in that, Both the first power supply and the second power supply are AC-DC power supplies; both the first power supply and the second power supply are used to convert 220V alternating current into 24V direct current; The positive input terminal of the first power supply is connected to the L terminal of 220V, and the negative input terminal of the first power supply is connected to the N terminal of 220V; the positive input terminal of the second power supply is connected to the L terminal of 220V, and the negative input terminal of the second power supply is connected to the N terminal of 220V.

9. The fault detection device according to claim 8, characterized in that, It further includes a first circuit breaker and a second circuit breaker; The L terminal of 220V is connected to the positive input terminals of the first power supply and the second power supply after passing through the first circuit breaker; the N terminal of 220V is connected to the negative input terminals of the first power supply and the second power supply after passing through the second circuit breaker.

10. The fault detection device according to claim 1, characterized in that, The controlled device includes at least one relay and / or at least one solenoid valve.

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