CN113346604B - A control system for starting and stopping a vehicle display screen with built-in UPS - Google Patents
A control system for starting and stopping a vehicle display screen with built-in UPS Download PDFInfo
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- CN113346604B CN113346604B CN202110652348.9A CN202110652348A CN113346604B CN 113346604 B CN113346604 B CN 113346604B CN 202110652348 A CN202110652348 A CN 202110652348A CN 113346604 B CN113346604 B CN 113346604B
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- power supply
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Classifications
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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
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Sources (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
本发明公开了一种自带UPS的车载显示屏启停的控制系统，涉及轨道交通列车网络信号技术领域，其结构包括DU系统，所述DU系统的电源口位置处布置有三根针脚，第一个针脚连接供电模块负极，第二针脚连接供电模块正极和备用电源模块，第三针脚连接信号判断模块，所述信号判断模块与供电模块正极串联；其中，所述供电模块接入准备电回路，所述备用电源模块和信号判断模块接入永久电回路，本发明中的系统逻辑更为完善，电路工作状态更可靠，应用程序可通过监视FT口的设备硬件信息，从而判断此时设备应该处于的状态，实现硬件设备的启动、关机或是切换到UPS供电状态。
The invention discloses a control system for starting and stopping a vehicle-mounted display screen with a built-in UPS, and relates to the technical field of network signals of rail transit trains. The structure thereof comprises a DU system, wherein three pins are arranged at the power port of the DU system, wherein the first pin is connected to the negative pole of a power supply module, the second pin is connected to the positive pole of the power supply module and a backup power supply module, and the third pin is connected to a signal judgment module, wherein the signal judgment module is connected in series with the positive pole of the power supply module; wherein the power supply module is connected to a preparation power circuit, and the backup power supply module and the signal judgment module are connected to a permanent power circuit. The system logic in the invention is more perfect, and the circuit working state is more reliable. An application program can judge the state that a device should be in at this time by monitoring the device hardware information of an FT port, so as to realize the startup, shutdown or switching of the hardware device to a UPS power supply state.
Description
Technical Field
The invention relates to the technical field of rail transit train network signals, in particular to a vehicle-mounted display screen start-stop control system with a UPS.
Background
The UPS is mainly divided into two main types of three forms, namely one type is a backup type, the other type is an online type, and the other type is an online interactive type between the two types, and the UPS mainly comprises a rectifier, an inverter, a storage battery pack and a change-over switch, wherein the UPS mainly realizes the power failure detection and the change-over function of an internal storage battery through the change-over switch after the power failure of a vehicle under an emergency condition.
The current UPS application field can be divided into two types, namely one type of UPS power supply system equipment for information equipment and the other type of UPS power supply system equipment for industrial power. For example, the UPS power supply is used as an important peripheral of the computer information system, so that computer data can be protected under the condition of sudden power failure, and the damage to users caused by the instantaneous power failure is prevented.
Most UPS circuits on the market have higher safety and stability, but the working mode is not flexible enough, the UPS circuit is used as another load power supply module outside an external power supply, namely, the UPS circuit is used as a backup type in three forms of the UPS, the external power supply is firstly rectified and inverted and then is output to the load circuit, when the external power supply is powered off, the UPS continues to supply power, but because the circuit is not controlled by other logic, partial defects possibly exist, the situation that the external power supply has power, but the external power supply is supplied by a storage battery, or the load is directly started by the storage battery under the condition that the external power supply does not have power supply.
Therefore, compared with the prior art, the system logic is more complete, the circuit working state is more reliable, and an application program can judge the state of equipment at the moment by monitoring the equipment hardware information of the FT port, so that the starting, shutdown or switching of the hardware equipment to the UPS power supply state is realized.
Disclosure of Invention
Compared with the prior art, the system logic is more complete, the circuit working state is more reliable, and an application program can judge the state of equipment at the moment by monitoring the equipment hardware information of the FT port, so that the starting, shutdown or switching of the hardware equipment to the UPS power supply state is realized.
The invention is realized by the following technical scheme that the control system for starting and stopping a vehicle-mounted display screen with a UPS comprises a DU system, wherein three pins are arranged at the position of a power port of the DU system, the first pin is connected with a negative electrode of a power supply module, the second pin is connected with a positive electrode of the power supply module and a standby power supply module, the third pin is connected with a signal judging module, and the signal judging module is connected in series with the positive electrode of the power supply module;
The standby power supply module and the signal judging module are connected to the permanent circuit.
Preferably, the standby power module is composed of a second switch and a first diode connected in series.
Preferably, the signal judging module comprises a break-before-make switching contact point relay and a third switch.
Preferably, the DU system provides power for its operation by preparing an electrical loop, and the DU system output enables signal access to the permanent electrical loop.
Preferably, the state of the DU system is regulated according to the state of the vehicle, and the DU system comprises the following states that when the vehicle wakes up, a preparation circuit of the vehicle is powered on, and at the moment, the DU system is normally started;
when the vehicle is dormant, the normally closed contact of the break-before-make switching contact point relay is opened, and when the DU system reads that the FT state is 0, a machine closing instruction is executed, and the DU system is closed;
when the vehicle has no sleep signal, the vehicle is ready for the power circuit to be powered down accidentally, and the DU system continues to work by using the UPS until the UPS is exhausted or the UPS receives a shutdown instruction;
When the hard drive of the DU is started, the second switch is disconnected, and the DU system performs power supply work through the UPS until the power consumption of the UPS or the power-off instruction is received.
The invention discloses a control system for starting and stopping a vehicle-mounted display screen with a UPS (uninterrupted power supply), which is compared with the prior art:
Compared with the existing working mode of realizing UPS power supply switching by a pure electric circuit, the switching mechanism based on program monitoring is more complete in logic and more reliable in circuit working state, an application program can judge the state of equipment which is supposed to be in at the moment by monitoring equipment hardware information of an FT port so as to realize starting, shutdown or switching to a UPS power supply state of the equipment, a hardware input signal is provided for a DU system except for two pins of a power supply anode and a power supply cathode, the state of the signal is read by the application program to control the starting and the shutdown of the equipment, logic is realized, the load can be started only under the condition of external power supply, then the equipment is switched to the UPS power supply, and the UPS self-starting cannot be carried out.
Drawings
Fig. 1 is a schematic circuit diagram of a UPS system according to the prior art, and fig. 2 is a schematic circuit diagram of a control system according to an embodiment.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
As shown in fig. 1, the conventional UPS system is composed of a rectifier, a storage battery, an inverter, a static switch and a control system, which firstly converts the ac power input from the utility power into a regulated dc power, supplies the regulated dc power to the storage battery and the inverter, and then converts the regulated dc power into a stable, clean and high-quality ac power through the inverter, which can eliminate the power problems (voltage fluctuation, frequency fluctuation, harmonic distortion and various disturbances) possibly occurring in the re-input power, but the defects are also obvious, the external power supply is rectified and inverted by the UPS circuit and then output to the load circuit, when the external power supply is powered off, the UPS continues to supply power, but partial defects possibly exist due to the fact that the circuit is not controlled by other logic, and the situation that the external power supply is powered by a storage battery occurs under the condition that the external power supply has electricity exists. Or the load is started directly through the accumulator under the condition that no external power supply is used for supplying power.
Based on the problems, the invention discloses a control system for starting and stopping a vehicle-mounted display screen with a UPS, which structurally comprises a DU system, wherein three pins are arranged at the position of a power port of the DU system, the first pin is connected with the cathode of a power supply module, the second pin is connected with the anode of the power supply module and a standby power supply module, the third pin is connected with a signal judging module, the signal judging module is connected with the anode of the power supply module in series, the power supply module is connected with a preparation circuit, the standby power supply module and the signal judging module are connected with a permanent electric circuit, the standby power supply module consists of a second switch and a first diode which are connected in series, the signal judging module comprises a contact point relay and a third switch which are switched after being disconnected, the DU system supplies power for the operation of the DU system through the preparation electric circuit, and a start enabling signal is connected with the permanent electric circuit.
The state of the DU system is regulated according to the state of the vehicle, and the DU system comprises the following states that when the vehicle wakes up, a preparation circuit of the vehicle is powered on, and at the moment, the DU system is normally started;
When the vehicle is dormant, the normally closed contact of the break-before-make switching contact point relay is opened, and when the DU system reads that the FT state is 0, a machine closing instruction is executed, and the DU system is closed;
when the vehicle has no sleep signal, the vehicle is ready for the power circuit to be powered down accidentally, and the DU system continues to work by using the UPS until the UPS is exhausted or the UPS receives a shutdown instruction;
When the hard drive of the DU is started, the second switch is disconnected, and the DU system performs power supply work through the UPS until the power consumption of the UPS or the power-off instruction is received.
In order to facilitate understanding, the invention discloses a specific embodiment, as shown in a circuit diagram in fig. 2, the embodiment discloses a control system for starting and stopping a vehicle-mounted display screen with a UPS, the control system is composed of an external control circuit and DU equipment, a power port of the DU equipment is composed of three pins, two pins are power supply positive and negative electrodes, and one pin is equipment hardware information pin, wherein a 0V pin is connected with a power supply 110V negative electrode, a +UB is connected with a 110V external power supply positive electrode and a UPS standby power supply 110V positive electrode, a standby power supply is composed of a switch and a diode, so that the external power supply positive electrode can not influence the standby power supply positive electrode, the equipment hardware signal pin is externally connected with a signal judging circuit, and the signal judging circuit is composed of a break-before-make switching contact point relay and a switch, and is connected with the UPS power supply 110V positive electrode in parallel.
For the control system in the embodiment, under normal working conditions, the DU device is prepared to supply electricity for the operation of the DU device through the 110V of the vehicle, and a start enabling signal of the DU device is connected to a 110V permanent electric loop of the vehicle.
When the vehicle wakes up, the 110V ready circuit of the vehicle gets powered up, and the DU device starts normally.
When the vehicle is dormant, the SLR normally closed contact is opened, and when the DU (application program) reads that the FT state is 0, a shutdown instruction (halt) is executed to shut down the DU.
When the vehicle is not dormant (ft=1), the vehicle 110V is ready for an unexpected power loss of the electrical circuit (fuse open, battery under-voltage, etc.), the DU device will continue to operate using its UPS until its UPS is dead or it receives a shutdown command (a soft button may be set through the DU interface to send a shutdown command to the device).
In emergency maintenance conditions, where the vehicle is not awake, the vehicle 110V is ready for the electrical circuit to be unpowered, requiring the DU to operate for a period of time with its own UPS. Then DUCB needs to be closed first to enable the DU to have external power supply (24 v-110 v) so that the DU can be started normally. When the hardware drive of the DU is started (i.e. after the start picture appears on the DU interface), the DU is disconnected DUCB and the power supply work is performed by the UPS until the UPS is exhausted or the UPS receives a shutdown command (the soft button can be set on the DU interface to send the shutdown command to the device).
It should be noted that, in the embodiment, the external power supply and control interface of the DU device is an M23 interface, where +ub,0V is a positive and negative interface of the external power supply of the DU device, FT is a hard-wired input signal of the DU device, an application program may control the shutdown of the device by reading the state of the signal, the DU device may not be self-started by its UPS, and may be switched to the UPS power supply maintenance operation only after the external power supply is started, as shown in fig. 1.
DU may be started in either of the following cases:
when the power interface (+Ub, 0V) of the DU is switched from the unpowered state to the powered-on state, the DU device is started.
When the power supply interface of the DU equipment is always in an electrified state, the power supply interface of the DU equipment is required to be disconnected and then closed again, the DU equipment can be started, or the DU equipment can be started by supplying an electrifying pulse signal to the FT interface.
The device may be turned off in either case of no power supply outside the DU and a depleted UPS power;
The DU device receives a shutdown instruction (halt).
It should be further noted that DUCB in the embodiment may be replaced by a self-resetting push button switch, but the switch must be maintained for more than 15s to ensure that the DU completes the hardware-driven start, and the FTCB and SLR loop may use the SLR signal sent by the network to replace the loop function.
In summary, compared with the prior art, the switching mechanism based on program monitoring has more perfect logic and more reliable circuit working state compared with the working mode of the existing pure electric circuit for realizing UPS power supply switching, the application program can judge the state of the equipment at the moment by monitoring the equipment hardware information of the FT port so as to realize the starting, shutting down or switching of the hardware equipment to the UPS power supply state, and for the DU system, besides the two pins of the power supply anode and cathode, a hardware input is provided
And inputting a signal, reading the state of the signal by using an application program to control the starting and the closing of the equipment, realizing logic, enabling the load to be started only under the condition of external power supply, switching to UPS power supply, and not enabling the UPS to be started automatically.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept, can be replaced or changed with the same embodiments within the scope of the present invention.
It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Claims (1)
1. The control system is characterized by comprising a DU system, wherein three pins are arranged at the position of a power port of the DU system, the first pin is connected with the negative electrode of a power supply module, the second pin is connected with the positive electrode of the power supply module and a standby power supply module, the third pin is connected with a signal judging module, and the signal judging module is connected with the positive electrode of the standby power supply module in parallel;
the standby power supply module consists of a second switch and a first diode which are connected in series;
the signal judging module comprises a break-before-make switching contact point relay and a third switch;
When the vehicle wakes up, a preparation circuit of the vehicle is powered on, and at the moment, the DU system is started normally;
When a vehicle is dormant, the normally closed contact of the break-before-make switching contact point relay is opened, the DU system reads that the FT state is 0, a shutdown instruction is executed, the DU system is closed, and FT is a hard wire input signal of the DU system;
When the vehicle has no sleep signal, the vehicle is ready for the power failure of the electric loop, and the DU system continues to work by using the UPS until the UPS is exhausted or the UPS receives a shutdown instruction;
When the hardware drive of the DU is started, the second switch is disconnected, and the DU system performs power supply work through the UPS until the power consumption of the UPS or the power-off instruction is received;
the DU system supplies power for the operation of the DU system by preparing an electric loop, and the DU system output starting enabling signal is connected to the permanent electric loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652348.9A CN113346604B (en) | 2021-06-11 | 2021-06-11 | A control system for starting and stopping a vehicle display screen with built-in UPS |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110652348.9A CN113346604B (en) | 2021-06-11 | 2021-06-11 | A control system for starting and stopping a vehicle display screen with built-in UPS |
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| CN113346604A CN113346604A (en) | 2021-09-03 |
| CN113346604B true CN113346604B (en) | 2025-04-15 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104731294A (en) * | 2015-03-17 | 2015-06-24 | 深圳中盛恒华电气有限公司 | Uninterrupted power supply intelligent parallel operation power supply control system and method |
| CN105048624A (en) * | 2015-08-24 | 2015-11-11 | 青岛艾迪森科技有限公司 | UPS power-supply multi-static-state combined realizing multi-class load power supply system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI536156B (en) * | 2015-04-27 | 2016-06-01 | 緯創資通股份有限公司 | Switching Module, Related Server Device and Power Switching Method |
| US10361558B2 (en) * | 2016-02-08 | 2019-07-23 | Avago Technologies International Sales Pte. Limited | Two stage power control system for automotive devices |
| CN211606150U (en) * | 2020-03-08 | 2020-09-29 | 何孝嫣 | 12V boats and ships or on-vehicle lithium electricity stand-by power supply with mouthful |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104731294A (en) * | 2015-03-17 | 2015-06-24 | 深圳中盛恒华电气有限公司 | Uninterrupted power supply intelligent parallel operation power supply control system and method |
| CN105048624A (en) * | 2015-08-24 | 2015-11-11 | 青岛艾迪森科技有限公司 | UPS power-supply multi-static-state combined realizing multi-class load power supply system |
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| CN113346604A (en) | 2021-09-03 |
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