Multi-path power supply control system for shelter truck

Abstract

The invention discloses a shelter truck multi-power supply power supply control system, which is characterized in that a power supply input module, a power supply detection display module, a power supply branch switching module and a power supply output module are sequentially connected, and the power supply input module is used for being connected with various external input power supplies and outputting power to the power supply detection display module and the power supply branch switching module; the power supply detection display module is used for displaying various power supply parameters and environmental parameters in the system, the power supply branch switching module receives the power supply parameters for detection, completes power supply branch switching according to requirements and sends a branch switching result to the power supply detection display module, and the power supply output module is connected with various electric devices. And power is supplied to each electric device. According to the scheme, the power supply situation is judged in multiple modes, power supply switching is conducted according to the actual situation, rapid switching and mutual backup of power supply of multiple power sources are achieved during field operation of the shelter truck, reliable power supply guarantee is provided for equipment in the shelter truck, the emergency troubleshooting step is simplified, the skill requirements of operators are reduced, and the working efficiency is improved. The operation preparation time is shortened, the flexible and rapid deployment capacity of the shelter truck is improved, and the maneuverability, adaptability, survivability and supportability of the shelter truck during field operation are further improved.

Description

Technical Field

[0001] The invention belongs to the field of power supply control of a shelter vehicle, and in particular relates to a multi-channel power supply control system for a shelter vehicle. Background Art

[0002] Shelter trucks have been widely used in the military and civilian markets because of their flexible, mobile and rapid deployment characteristics. Some of the key equipment loaded in them requires dual power supply. Considering the comprehensive deployment mobility and cost-effectiveness, the current selection of transport vehicle chassis on the market is mainly 6×4 or 6×6. The length of the loading space of this type of vehicle chassis is about 7 meters. In a limited space, it is necessary to load a large-volume shelter and reserve space for the installation of a generator. To meet the above requirements, the market mostly adopts the installation of two small-sized and low-power generators. Under normal circumstances, one generator powers key equipment and the other powers non-key equipment. In the emergency situation of one of the generators failing, the power supply to non-key equipment is abandoned to ensure the power supply to key equipment.

[0003] The existing power supply and distribution methods have obvious shortcomings. First, when the generator that originally powered the key equipment fails, it is necessary to manually jump the power cable of the original generator out of the power supply trunk line and then connect it to the power cable of another generator. Second, when both generators fail, even if there is city power in unfamiliar areas, the output power is often limited and unstable, and the emergency access to the city power is cumbersome. Third, when the shelter vehicle enters a high-altitude area for operation, the output power of the generator decreases with increasing altitude due to the decrease in atmospheric pressure. The output power of the generator that has sufficient power in the plains decreases by about 35% when the altitude increases to 4,000 meters. The power supply of a single generator is insufficient, and the operation of connecting two generators to the grid is complicated.

[0004] In summary, the current single power supply and distribution method of the container vehicle has restricted its characteristics of flexible and mobile deployment in the field. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a multi-power supply control system for a container cabin vehicle, so as to realize rapid switching and mutual backup of multiple power supplies when the container cabin vehicle is operating in the field, provide reliable power supply guarantee for the equipment in the cabin, and improve the ability of the container cabin vehicle to be flexibly, maneuverably and quickly deployed.

[0006] The specific technical solution for achieving the purpose of the present invention is:

[0007] A multi-channel power supply control system for a shelter vehicle, comprising a power supply input module, a power supply detection and display module, a power supply branch switching module and a power supply output module;

[0008] The power supply input module, power supply detection and display module, power supply branch switching module and power supply output module are connected in sequence, wherein the power supply input module is used to connect to multiple external input power sources, and output the power supply to the power supply detection and display module and the power supply branch switching module, the power supply detection and display module is used to display various power supply parameters and environmental parameters in the system, the power supply branch switching module receives the power supply parameters for detection, completes the power supply branch switching according to the demand, and sends the branch switching result to the power supply detection and display module, the power supply output module is connected to each electrical device, and supplies power to each electrical device.

[0009] Furthermore, the power supply input module includes multiple external power supplies, automatic switching switches, and surge protectors;

[0010] The external power sources are connected to the system through automatic switching switches, and are connected through leakage protectors and power supply detection and display modules respectively;

[0011] A surge protector is also provided on the power supply input module.

[0012] Furthermore, the power supply detection and display module includes multiple ammeters, voltmeters, frequency meters, sensors, display screens, detection and display circuits, and status indicator lights, which are respectively used to collect power supply parameters and environmental parameters of the entire system.

[0013] Furthermore, the sensors include a power sensor, an altitude sensor and an oxygen content sensor.

[0014] Further, the power supply branch switching module includes a processor control unit, a switch control unit, a relay contactor execution unit, a servo execution unit and a conversion switch unit;

[0015] The processor control unit is connected to the power supply detection display module, the switch control unit and the relay contactor execution unit respectively, and is used to perform calculations on various power supply parameters and environmental parameters in the system, determine the best power supply channel, and generate control quantity signals to be transmitted to the relay contactor execution unit and the switch control unit;

[0016] The switch control unit is connected to the processor control unit and the relay contactor execution unit respectively, and is used to receive external switch control instructions and transmit corresponding control signals to the processor control unit and the relay contactor execution unit;

[0017] The relay contactor execution unit is connected to the processor control unit and the switch control unit respectively, and receives the control signal transmitted by the processor control unit and the switch control unit. The relay contactor execution unit is connected to the servo execution unit, and controls the start and stop of the generator and the action of the servo execution unit according to the control signal;

[0018] The servo execution unit is connected to the conversion switch unit, receives the control signal of the relay contactor execution unit, and completes the gear switching control of the conversion switch unit.

[0019] Further, the processor control unit receives the generator power supply parameters collected by the power supply detection and display module, and determines the generator state based on the parameters. If it is determined that the generator power supply is normal, no power supply switching operation is performed. If it is determined that the generator power supply is abnormal, the following power supply switching operation is performed:

[0020] The processor control unit performs power supply switching operations according to its preset power supply and distribution model: the processor control unit sends a remote control quantity to the relay contactor execution unit, and the relay contactor execution unit controls the generator to start according to the remote control quantity;

[0021] After the generator receives the start remote control quantity, it ignites and starts to supply power to the power supply mains.

[0022] Further, the processor control unit determines whether a power switching instruction issued by the switch control unit is received, and if not, does not perform a power supply switching operation, and if so, performs a power supply switching operation;

[0023] The processor control unit receives the power supply parameter information collected by the power supply detection and display module, determines the current power supply quality, and does not perform the power supply switching operation if the power supply quality is determined to be qualified, and performs the power supply switching operation if the power supply quality is determined to be unqualified;

[0024] The power supply switching operation is:

[0025] The processor control unit sends a remote control quantity to the relay contactor execution unit, the relay contactor execution unit controls the action of the servo execution unit, and the servo execution unit controls the conversion switch unit to realize the gear switching of the switch, thereby realizing the switching of the power supply line.

[0026] Further, the processor control unit determines whether a power switching instruction issued by the switch control unit is received. If not, the power supply switching operation is not performed. If yes, the power supply switching operation is performed:

[0027] The processor control unit receives the power supply parameter information collected by the power supply detection and display module, and determines whether the current operation is plateau operation according to the power supply parameter information. If yes, the power supply switching operation is performed; if not, the power supply switching operation is not performed;

[0028] The power supply switching operation is:

[0029] The processor control unit sends a remote control quantity to the relay contactor execution unit, the relay contactor execution unit controls the action of the servo execution unit, and the servo execution unit controls the conversion switch unit to realize the gear switching of the switch, thereby realizing the switching of the power supply line.

[0030] Further, the processor control unit determines whether a power switching instruction issued by the switch control unit is received. If not, the power supply switching operation is not performed. If yes, the power supply switching operation is performed:

[0031] The processor control unit receives the power supply parameter information collected by the power supply detection and display module, and determines the current power supply quality according to the power supply parameter information. If the power supply quality is determined to be qualified, the power supply switching operation is not performed; if the power supply quality is determined to be unqualified, the power supply switching operation is performed;

[0032] The power supply switching operation is:

[0033] The processor control unit sends a remote control quantity to the relay contactor execution unit, the relay contactor execution unit controls the action of the servo execution unit, and the servo execution unit controls the conversion switch unit to realize the gear switching of the switch, thereby realizing the switching of the power supply line.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The scheme of the present invention uses a power supply input module for connecting multiple power supply input power sources and protecting the safety of electrical equipment, a power supply detection and display module for detecting and displaying the power supply parameters of multiple power supply circuits and equipment, and collecting and displaying the temperature, altitude, and oxygen content of the air, a power supply branch switching module for selecting and switching multiple power supplies, and distributing power supply to key equipment and non-key equipment, and a power supply output module for connecting key equipment and non-key equipment and protecting them;

[0036] During the power supply switching process, multiple methods can be used to judge and switch the power supply, including power supply quality, whether it is in plateau conditions, etc., so that when the container vehicle is operating in the field, multiple power supplies can be quickly switched and backed up, providing reliable power supply guarantee for the equipment in the cabin, simplifying the emergency troubleshooting steps, reducing the skill requirements for operators, shortening the operation preparation time, and improving the ability of the container vehicle to be flexibly and quickly deployed, further improving the mobility, adaptability, survivability and security of the container vehicle in field operations.

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The figure is a schematic diagram of the architecture of a multi-channel power supply control system for a shelter vehicle in an embodiment of the present invention.

[0039] Figure 2 Schematic diagram of the power supply branch switching module architecture in an embodiment of the present invention.

[0040] Figure 3The figure is a circuit diagram of a multi-channel power supply control system of a shelter vehicle in an embodiment of the present invention.

[0041] Figure 4 The figure is a schematic diagram of a multi-channel power supply control process of a shelter vehicle in an embodiment of the present invention.

[0042] Figure 5 The figure is a schematic diagram of a multi-channel power supply control process of a shelter vehicle in an embodiment of the present invention.

[0043] Figure 6 The figure is a schematic diagram of a multi-channel power supply control process of a shelter vehicle in an embodiment of the present invention.

[0044] Figure 7 The figure is a schematic diagram of a multi-channel power supply control process of a shelter vehicle in an embodiment of the present invention.

[0045] Figure 8 The figure is a schematic diagram of a multi-channel power supply control process of a shelter vehicle in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] Example

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an kind" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0049] At present, when the shelter vehicle is operating in the field, if the self-contained generator fails or the output power is insufficient after reaching the plateau, personnel need to be arranged to connect and jumper on site. This type of operation has certain safety risks and requires professional personnel to perform. Ordinary personnel are not competent, and the timeliness of maintenance and troubleshooting is reduced. If special personnel are assigned, the personnel cost will be increased.

[0050] Based on this, this embodiment provides a multi-channel power supply and control system for a container vehicle. When a single-channel power supply abnormality occurs, the power supply can be maintained by simple switch switching, thereby improving the emergency support capability and flexibility of the container vehicle.

[0051] Combination Figure 1 to Figure 2, a multi-channel power supply control system for a shelter vehicle, comprising a power supply input module 10, a power supply detection and display module 11, a power supply branch switching module 12 and a power supply output module 13;

[0052] The power supply input module 10, the power supply detection and display module 11, the power supply branch switching module 12 and the power supply output module 13 are connected in sequence, wherein the power supply input module 10 is used to connect to multiple external input power sources, and output the power supply to the power supply detection and display module 11 and the power supply branch switching module 12, the power supply detection and display module 11 is used to display various power supply parameters and environmental parameters in the system, the power supply branch switching module 12 receives the power supply parameters for detection, completes the power supply branch switching according to the demand, and sends the branch switching result to the power supply detection and display module 11, and the power supply output module 13 is connected to each electrical device and supplies power to each electrical device.

[0053] The power supply input module 10 includes a wiring terminal, an air switch, multiple external power supplies, an automatic switching switch, and a surge protector, which is used for selecting between a single-circuit mains power supply and a single-circuit generator power supply and for power supply circuit protection;

[0054] This embodiment takes 4 power supplies as an example, 2 city power supplies and 2 generator power supplies, and the power supply cables are respectively connected to the power supply input module 10;

[0055] The external power sources are connected to the system through automatic switching switches, and are connected through leakage protectors and power supply detection and display modules 11 respectively;

[0056] The power supply input module 10 is also provided with a surge protector.

[0057] The power supply detection and display module 11 includes multiple ammeters, voltmeters, frequency meters, sensors, display screens, detection and display circuits, and status indicator lights, which are respectively used to collect power supply parameters and environmental parameters of the entire system.

[0058] Specifically, the sensors may include a power sensor, an altitude sensor, and an oxygen content sensor.

[0059] The power supply branch switching module 12 includes a processor control unit 121, a switch control unit 122, a relay contactor execution unit 123, a servo execution unit 124 and a conversion switch unit 125;

[0060] The processor control unit 121 is connected to the power supply detection display module 11, the switch control unit 122 and the relay contactor execution unit 123 respectively, and is used to perform calculations on various power supply parameters, environmental parameters and state quantities in the system, determine the best power supply channel, and generate a control quantity signal to transmit to the relay contactor execution unit 123 and the switch control unit 122;

[0061] That is, the processor control unit 121 in the power supply branch switching module 12 controls the contactor and relay coil to energize according to the optimal power supply channel to disconnect the normally closed contact and close the normally open contact to control the servo execution unit 124 connected to the rear end to operate. The servo execution unit 124 controls the gear switching of the conversion switch unit 125 to switch the power supply line and ensure continuous power supply to key equipment.

[0062] The power supply parameters include voltage, current, frequency, temperature, altitude, and air oxygen content; the control quantity signals include the opening and closing of circuit breakers and contactors and the action of the servo execution unit 124; the state quantities include the lighting and extinguishing of indicator lights, the directional position of control switches, and the sounding of alarms.

[0063] The switch control unit 122 is connected to the processor control unit 121 and the relay contactor execution unit 123 respectively, and is used to receive external switch control instructions and transmit corresponding control signals to the processor control unit 121 and the relay contactor execution unit 123.

[0064] The relay contactor execution unit 123 is connected to the processor control unit 121 and the switch control unit 122 respectively, and receives the control signal transmitted by the processor control unit 121 and the switch control unit 122. The relay contactor execution unit 123 is connected to the servo execution unit 124, and controls the start and stop of the generator and the action of the servo execution unit 124 according to the control signal;

[0065] The servo execution unit 124 is connected to the conversion switch unit 125, receives the control signal of the relay contactor execution unit 123, and completes the gear switching control of the conversion switch unit 125, thereby realizing the switching of the power supply branch.

[0066] The switching of this power supply branch can be controlled by instructions issued by the processor control unit 121, or by the switch control unit 122 receiving external direct switching control instructions. In other words, the power supply detection and display module 11 displays the collected voltage, current, frequency, temperature of each electrical component and power supply circuit, as well as the remote measurement of altitude and air oxygen content to the operator through the screen, instrument pointer and status indicator light. The operator inputs the external power supply switching instruction into the switch control unit 122 according to the power demand, generates a control quantity signal to control the normally closed contact of the internal relay contactor of the relay contactor execution unit 123 to disconnect and the normally open contact to close, controls the servo execution unit 124 to operate, and controls the servo execution unit 124 to control the gear switching of the conversion switch unit 125 to achieve the goal of power supply branch channel selection.

[0067] In some practical situations, the switch control unit 122 has the highest control authority.

[0068] Specifically in this embodiment, combined with Figure 3 , a circuit schematic diagram of a multi-channel power supply control system for a shelter vehicle in an embodiment is given:

[0069] The power supply input module 10 includes four power supply terminals of mains 1, generator 1, mains 2 and generator 2, automatic switching switch 1 and automatic switching switch 2, surge protector 1 and surge protector 2, leakage protector 1 and leakage protector 2;

[0070] The power supply detection and display module 11 includes an ammeter, a voltmeter, a frequency meter, a sensor for collecting voltage, current, frequency, power, altitude, oxygen content in the air, a display screen, a detection and display circuit, and a status indicator light;

[0071] The power supply branch switching module 12 includes a transfer switch 1, a transfer switch 2, a transfer switch 3, a transfer switch 4, a contactor, and a processor control unit 121, a switch control unit 122, a relay contactor execution unit 123, and a servo execution unit 124 which are not explicitly shown in the schematic diagram.

[0072] The power output module 13 includes a power output terminal and a circuit breaker QF.

[0073] In this embodiment, the power supply circuit formed by the mains 1 and the generator 1 connected in parallel through the automatic switching switch 1 is called the power supply trunk circuit 1;

[0074] The power supply circuit formed by the city power 2 and the generator 2 connected in parallel through the automatic switching switch 2 is called the power supply trunk circuit 2;

[0075] When working in plain areas, under normal conditions:

[0076] Power supply trunk line 1 connects UPS1 power supply and UPS2 power supply to supply power to its back-end key equipment, and power supply trunk line 2 supplies power to non-key equipment;

[0077] When working in plain areas, under abnormal conditions:

[0078] If the power supply trunk line 1 is abnormal, the connection with UPS1 and UPS2 will be disconnected to stop the power supply. The power supply trunk line 2 will be disconnected from non-critical equipment and switched to connect to UPS1 and UPS2 to supply power to its back-end critical equipment.

[0079] If the power supply trunk line 2 is abnormal, the connection with non-critical equipment will be disconnected to stop the power supply. The power supply trunk line 1 will maintain the original power supply status unchanged.

[0080] When working in plateau areas, under normal conditions:

[0081] Power supply trunk line 1 is connected to UPS1 power supply to supply power to its back-end key equipment;

[0082] The power supply trunk line 2 is disconnected from non-critical equipment and stops supplying power, and is switched to connect to the UPS2 power supply to supply power to its back-end critical equipment.

[0083] When working in plateau areas, under abnormal conditions:

[0084] If power supply trunk line 1 is abnormal, the connection with UPS1 power supply will be disconnected, and UPS1 power inverter will continue to supply power to the back-end key equipment, and trigger the sound and light alarm; power supply trunk line 2 is connected to UPS2 power supply to supply power to the back-end key equipment, and the status remains unchanged.

[0085] If power supply trunk line 2 is abnormal, the connection with UPS2 power supply will be disconnected, and UPS2 power inverter will continue to supply power to the back-end key equipment, and trigger the sound and light alarm; power supply trunk line 1 is connected to UPS1 power supply to supply power to the back-end key equipment, and the status remains unchanged.

[0086] In case of UPS power failure:

[0087] If UPS1 fails or is under maintenance, and the back-end critical equipment requires emergency power supply, the UPS1 power supply is bypassed through the conversion switch 2, and the power supply trunk 1 or the power supply trunk 2 is switched to directly supply power to the critical equipment, and the sound and light alarm is triggered.

[0088] If UPS2 fails or is under maintenance, and the back-end critical equipment requires emergency power supply, the UPS2 power supply is bypassed through the conversion switch 4, and the power supply trunk 1 or the power supply trunk 2 is switched to directly supply power to the critical equipment, and the sound and light alarm is triggered.

[0089] For example, Figure 3 As shown, the mains 1 line and the generator 1 line are respectively connected to the No. 1 input terminal and the No. 2 input terminal of the automatic transfer switch 1, the output terminal of the automatic transfer switch 1 is connected to the input terminals of the surge protector 1 and the leakage protector 1, the other end of the surge protector 1 is grounded, and the output terminal of the leakage protector 1 is connected to the voltmeter, the ammeter, the frequency meter, the indicator light and is connected to the No. 1 and No. 5 pins of the transfer switch 1.

[0090] The mains 2 line and the generator 2 line are connected to input terminals 1 and 2 of the automatic transfer switch 2 respectively; the output terminal of the automatic transfer switch 2 is connected to the input terminals of the surge protector 2 and the leakage protector 2; the other end of the surge protector 2 is grounded; the output terminal of the leakage protector 2 is connected to a voltmeter, an ammeter, a frequency meter, and an indicator light and then to pins 3 and 7 and pins 11 and 15 of the transfer switch 1.

[0091] Among them, pins 3 and 10 of the conversion switch 1 are connected, pins 7 and 14 are connected, pins 2 and 4 are connected, pins 6 and 8 are connected, pins 1 and 5 are connected to the ordinary indicator light, and pins 12 and 16 are connected to the emergency indicator light.

[0092] The power supply branch of non-critical equipment should first be connected to the indicator light and then to the output end of the circuit breaker. The input end of the circuit breaker should first be connected to the normally closed contact of the contactor and then to pins 9 and 13 inside the transfer switch 1.

[0093] The output end of the leakage protector 2 is connected to the pins 3 and 7 of the conversion switch 3.

[0094] Pins 2 and 6 of transfer switch 1 are connected to pins 1 and 5 of transfer switch 3 respectively.

[0095] Inside the conversion switch 3, pins 1 and 9 are connected, pins 5 and 13 are connected, pins 3 and 11 are connected, pins 7 and 15 are connected, pins 2 and 4 are connected, and pins 6 and 8 are connected.

[0096] Pins 10 and 14 of the transfer switch 3 are connected to the plain indicator light, pins 12 and 16 are connected to the plateau indicator light, the coil of the contactor KM is connected between pins 12 and 16, pins 1 and 5 are connected to the input end of the circuit breaker QF2, the output end of the circuit breaker QF2 is connected to the input end of the UPS1 power supply, and the output end of the UPS1 power supply is connected to pins 1 and 5 of the transfer switch SA2.

[0097] Pins 1 and 5 of the transfer switch SA3 are connected to pins 3 and 7 of the transfer switch SA2, respectively.

[0098] Inside the transfer switch SA2, pins 1 and 13 are connected, pins 5 and 9 are connected, pins 3 and 15 are connected, pins 7 and 11 are connected, pins 2 and 4 are connected, and pins 6 and 8 are connected.

[0099] Pins 10 and 14 of the transfer switch SA2 are connected to the normal indicator light, pins 12 and 16 are connected to the bypass indicator light, and pins 2 and 6 are connected to the power supply output terminal and the circuit breaker to supply power to key equipment.

[0100] Pins 2 and 6 of the transfer switch SA3 are connected to the input of the circuit breaker QF3, the output of the circuit breaker QF3 is connected to the input of the UPS2 power supply, and the output of the UPS2 power supply is connected to pins 1 and 5 of the transfer switch SA4.

[0101] Pins 2 and 6 of the transfer switch SA3 are connected to pins 3 and 7 of the transfer switch SA4, respectively.

[0102] Internally of the transfer switch SA4, pins 1 and 13 are connected, pins 5 and 9 are connected, pins 3 and 15 are connected, pins 7 and 11 are connected, pins 2 and 4 are connected, and pins 6 and 8 are connected.

[0103] Pins 10 and 14 of the transfer switch SA4 are connected to the normal indicator light, pins 12 and 16 are connected to the bypass indicator light, and pins 2 and 6 are connected to the power supply output terminal and the circuit breaker to supply power to key equipment.

[0104] In this example, the automatic transfer switches ATS1 and ATS2 select the Chint NZ1BR-63 series dual-power automatic transfer switch, connect the mains to its main power supply terminal, and connect the generator to its standby power supply terminal. When any power supply terminal is connected to the power supply, the current power supply is output. If the current power supply is the mains, the mains power supply is output; if the current power supply is the generator, the generator power supply is output. When the mains and the generator are powered at the same time, the output is the mains power supply connected to the main power supply terminal. The automatic transfer switch can be set to manual mode, and the mains or generator power supply can be manually selected.

[0105] The transfer switches SA1, SA2, SA3, and SA4 are ELEC LW26-20 series three-speed double-throw switches. The electrical characteristics are shown in the following table:

[0106]

[0107]

[0108] In the plain area, when generator 1 and generator 2 are used to supply power to the container vehicle at the same time; the transfer switch SA1 works in gear 1, contacts 1-2 are connected, 5-6 are connected, 9-10 are connected, and 13-14 are connected, and the ordinary indicator light HL1 is on. The transfer switch SA3 works in gear 1, contacts 1-2 are connected, 5-6 are connected, 9-10 are connected, and 13-14 are connected, and the plain indicator light HL2 is on. At this time, the power supply of generator 1 is supplied through the automatic transfer switch ATS1, the leakage protector RCD1, the transfer switch SA1, the transfer switch SA3, and then through the circuit breakers QF2 and QF3 to the UPS1 power supply and UPS2 power supply respectively. The power supply of generator 2 is supplied to non-critical equipment such as air conditioners and multimedia equipment through the automatic transfer switch ATS2, the leakage protector RCD2, the transfer switch SA1, the normally closed contact of the contactor KM, and the circuit breaker QF1.

[0109] For example, when the generator 1 supplying power to the UPS power supply suddenly fails and loses power, the UPS power supply has a certain power-off endurance capability, and the key equipment will not be shut down due to the failure of the generator 1. At this time, the control conversion switch SA1 is switched from gear 1 to gear 2, and the contacts 3-4 are connected, 7-8 are connected, 11-12 are connected, and 15-16 are connected, and the non-critical equipment is disconnected from the generator 2 power supply circuit through the conversion switch SA1. The power supply of the generator 2 is supplied through the automatic switching switch ATS2, the leakage protector RCD2, the conversion switch SA1, the conversion switch SA3, and then through the circuit breakers QF2 and QF3 to the UPS1 power supply and the UPS2 power supply respectively, and the emergency indicator HL3 is lit.

[0110] For example, when the shelter vehicle enters the plateau area for operation, the output power of the generator decreases with increasing altitude. Above 4,500 meters above sea level, its output power is only 60% of that in the plain area. Generator 1, which originally had enough power in the plain area, faces the problem of overload after entering the plateau area. At this time, the control conversion switch SA1 works in gear 1, contacts 1-2 are connected, 5-6 are connected, 9-10 are connected, and 13-14 are connected, and the ordinary indicator light HL1 is lit. The control conversion switch SA3 works in gear 2, contacts 3-4 are connected, 7-8 are connected, 11-12 are connected, and 15-16 are connected, and the plateau indicator light HL4 is lit. The power supply of generator 1 is supplied to UPS1 power supply through automatic switching switch ATS1, leakage protector RCD1, conversion switch SA1, and circuit breaker QF2. The power supply of generator 2 is supplied to UPS2 power supply and contactor KM electromagnetic coil through automatic switching switch ATS2, leakage protector RCD2, conversion switch SA3, and circuit breaker QF3. After the electromagnetic coil of contactor KM is energized, its normally closed contact is disconnected to disconnect non-critical equipment from pins 9 and 13 of transfer switch SA1 to cut off power and prevent overload of generator 2. Finally, generator 1 supplies power to UPS1 and generator 2 supplies power to UPS2, reducing the risk of overload caused by the decrease of generator output power due to hypoxia in the plateau.

[0111] The power supply of mains 1 and generator 1 is through the automatic switching switch ATS1, and one of them is backed up by each other. The power supply principle of mains 1 is the same as that of generator 1, which will not be repeated. The power supply of mains 2 and generator 2 is through the automatic switching switch ATS2, and one of them is backed up by each other. The power supply principle of mains 2 is the same as that of generator 2, which will not be repeated.

[0112] For example, when the UPS1 power supply is working normally, the transfer switch SA2 works in gear 1, contacts 1-2 are connected, 5-6 are connected, 9-10 are connected, and 13-14 are connected, and the general indicator light HL5 is on. At this time, the UPS1 power supply supplies power to key equipment through the transfer switch SA2. When the UPS1 power supply fails or is under maintenance, in order to enable the key equipment to be powered on, the control transfer switch SA2 is switched from gear 1 to gear 2, contacts 3-4 are connected, 7-8 are connected, 11-12 are connected, and 15-16 are connected, and the bypass indicator light HL6 is on. Finally, the UPS1 power supply is bypassed, and the key equipment is directly powered by the mains 1 or generator 1.

[0113] For example, when the UPS2 power supply is working normally, the transfer switch SA4 works in gear 1, contacts 1-2 are connected, 5-6 are connected, 9-10 are connected, and 13-14 are connected, and the general indicator light HL7 is on. At this time, the UPS2 power supply supplies power to the key equipment through the transfer switch SA4. When the UPS2 power supply fails or is under maintenance, in order to enable the key equipment to be powered on, the control transfer switch SA4 is switched from gear 1 to gear 2, contacts 3-4 are connected, 7-8 are connected, 11-12 are connected, and 15-16 are connected, and the bypass indicator light HL8 is on. Finally, the UPS2 power supply is bypassed, and the key equipment is directly powered by the mains 2 or generator 2.

[0114] Generally speaking, in order to ensure that the power supply to key equipment is not interrupted, multiple power supply methods are often adopted to back up each other. Specifically, to ensure that the main power supply 1 is not interrupted, the mains 1 and the generator 1 are connected to the input end of the automatic switching switch ATS1 at the same time, and the automatic switching switch ATS1 ensures that the main power supply 1 at its output end is continuously powered. To ensure that the main power supply 2 is not interrupted, the mains 2 and the generator 2 are connected to the input end of the automatic switching switch ATS2 at the same time, and the automatic switching switch ATS2 ensures that the main power supply 2 at its output end is continuously powered. Among them, the power supply detection and display module 11 can collect and display the power supply quality of the mains 1, generator 1, mains 2, generator 2, power supply main 1, and power supply main 2 through sensors in the circuit. The power supply quality includes parameters such as current, voltage, frequency, and power.

[0115] The processor control unit 121 in the power supply branch switching module 12 determines whether the generator 1 and the generator 2 have started to generate electricity according to the power supply quality of the generator 1 and the generator 2 collected by the power supply detection and display module 11. If the generator has not started to generate electricity, the processor control unit 121 sends the remote control quantity for starting the generator to the relay contactor execution unit 123. The relay contactor execution unit 123 can be connected to the generator starting circuit or the generator remote control unit.

[0116] The processor control unit 121 in the power supply branch switching module 12 determines the power supply quality of the power supply trunk line 1 collected by the power supply detection and display module 11. If the power supply quality of the power supply trunk line 1 does not meet the set requirements or the power replacement instruction is input by human intervention, the processor control unit 121 starts the power switching program, controls the relay contactor execution unit 123 to control the servo execution unit 124 to act, and then controls the conversion switch SA1 to switch from gear 1 to gear 2, and the conversion switch SA2 remains unchanged at gear 1. The power supply trunk line 1 formed by the mains 1 and the generator 1 in parallel is disconnected from the UPS1 power supply and the UPS2 power supply, and the power supply is stopped. Switch to the power supply trunk line 2 formed by the mains 2 and the generator 2 in parallel to connect the UPS1 power supply and the UPS2 power supply, and start power supply.

[0117] When the container vehicle is operating in an area where there is no access to city electricity, the processor control unit 121 in the power supply branch switching module 12 determines whether it is a plateau operation based on the altitude and air oxygen content collected by the power supply detection display module 11 sensor. For example, the altitude ≥ 3000 meters or the air oxygen content ≤ 14.4% VOL can be set as plateau operation. For plateau operation, the power replacement program is started, and the remote control quantity is sent to the relay contactor execution unit 123. The relay contactor execution unit 123 is connected to the conversion switch SA3 and the conversion switch SA1 through the servo execution unit 124, and the conversion switch SA3 is controlled to switch from gear 1 to gear 2. The generator 1 supplies power to the UPS1 power supply and its rear-end key equipment, and the generator 2 supplies power to the UPS2 power supply and its rear-end key equipment.

[0118] Combination Figure 4 , which is the working process of the power supply branch switching module in one embodiment of the present invention:

[0119] Step 1101: the processor control unit 121 receives the generator power supply parameters collected by the power supply detection and display module 11, and determines the generator state based on the parameters. If it is determined that the generator has been powered, step 1105 is executed; if no power supply is detected, step 1102 is executed;

[0120] Step 1102: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0121] Step 1103: the processor control unit 121 sends a remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the generator to start and close the generator power supply circuit;

[0122] Step 1104: after receiving the start remote control quantity, the generator is ignited and starts to supply power to the power supply trunk. Generator 1 supplies power to the power supply trunk 1, and generator 2 supplies power to the power supply trunk 2;

[0123] Step 1105: The battery replacement operation is completed and you can exit the battery replacement program.

[0124] Combination Figure 5 , which is the working process of the power supply branch switching module in one embodiment of the present invention:

[0125] Step 1201: the processor control unit 121 inside the power supply branch switching module 12 receives the forced power replacement instruction issued by the identification switch control unit 122. If there is a forced power replacement instruction, step 1203 is executed; if there is no forced power replacement instruction, step 1202 is executed;

[0126] Step 1202: The processor control unit 121 receives the power supply parameter information of the power supply trunk 1 and the power supply trunk 2 collected by the power supply detection and display module 11, and judges the current power supply quality according to the power supply parameter setting value in its internal program. If qualified, execute step 1206, if unqualified, execute step 1203;

[0127] Step 1203: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0128] Step 1204: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, thereby controlling the conversion switch SA1 to switch from gear 1 to gear 2, and controlling the conversion switch SA3 to switch to gear 1;

[0129] Step 1205: the power supply trunk line 1 stops supplying power to the UPS1 power supply and its key load equipment and the UPS2 power supply and its key load equipment, and the power supply trunk line 2 starts supplying power to the UPS1 power supply and its key load equipment and the UPS2 power supply and its key load equipment;

[0130] Step 1206: The battery replacement operation is completed and the battery replacement program is exited.

[0131] Combination Figure 6 , which is the working process of the power supply branch switching module in one embodiment of the present invention:

[0132] Step 1301: The processor control unit 121 inside the power supply branch switching module 12 receives a forced battery replacement instruction issued by the identification switch control unit 122. If there is a forced battery replacement instruction, step 1303 is executed; if there is no forced battery replacement instruction, step 1302 is executed.

[0133] Step 1302: The processor control unit 121 receives the current altitude and air oxygen content collected by the power supply detection display module 11, and determines whether the current operation is at a plateau according to the altitude and air oxygen content setting values ​​in its internal program. If it is at a plateau, execute step 1303;

[0134] Step 1303: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0135] Step 1304: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, and then controls the conversion switch SA1 to switch to gear 1, and controls the conversion switch SA3 to switch to gear 2;

[0136] Step 1305: Generator 1 supplies power to UPS1 power supply and its key load equipment, and generator 2 supplies power to UPS2 power supply and its key load equipment;

[0137] In step 1302, if it is not a plateau operation, then execute step 1306;

[0138] Step 1306: The processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0139] Step 1307: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the conversion switch SA1 to switch to gear 1 and controls the conversion switch SA3 to switch to gear 2;

[0140] Step 1308: Generator 1 supplies power to UPS1 power supply and its load critical equipment and UPS2 power supply and its load critical equipment, and generator 2 supplies power to non-critical equipment;

[0141] Step 1309: The battery swap operation is completed and you can exit the battery swap program.

[0142] Combination Figure 7 , which is the working process of the power supply branch switching module in one embodiment of the present invention:

[0143] Step 1401: The processor control unit 121 inside the power supply branch switching module 12 receives a forced battery replacement instruction issued by the identification switch control unit 122. If there is a forced battery replacement instruction, step 1403 is executed; if there is no forced battery replacement instruction, step 1402 is executed.

[0144] Step 1402: The processor control unit 121 receives the power supply parameter information of the power supply output terminal of the UPS1 collected by the power supply detection and display module 11, and judges the current power supply quality according to the power supply parameter setting value in its internal program. If it is qualified, execute step 1403;

[0145] Step 1403: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0146] Step 1404: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, and then controls the conversion switch SA2 to switch to gear 1;

[0147] Step 1405: UPS1 supplies power to its back-end key load equipment;

[0148] In step 1402, if the power supply quality is unqualified, step 1406 is executed;

[0149] Step 1406: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0150] Step 1407: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, and then controls the conversion switch SA2 to switch to gear 2;

[0151] Step 1408: bypass the UPS1 power supply, and use the mains or generator to directly supply power to key equipment;

[0152] Step 1409: The battery swap operation is completed and you can exit the battery swap program.

[0153] Combination Figure 8 , which is the working process of the power supply branch switching module in one embodiment of the present invention:

[0154] Step 1501: the processor control unit 121 inside the power supply branch switching module 12 receives the forced power replacement instruction issued by the identification switch control unit 122. If there is a forced power replacement instruction, step 1503 is executed; if there is no forced power replacement instruction, step 1502 is executed;

[0155] Step 1502: The processor control unit 121 receives the power supply parameter information of the UPS2 power supply output terminal collected by the power supply detection and display module 11, and determines the current power supply quality according to the power supply parameter setting value in its internal program. If it is qualified, execute step 1503;

[0156] Step 1503: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0157] Step 1504: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, and then controls the conversion switch SA4 to switch to gear 1;

[0158] Step 1505: UPS2 supplies power to its rear-end key load equipment;

[0159] In step 1502, if the power supply quality is unqualified, step 1506 is executed;

[0160] Step 1506: the processor control unit 121 starts the power replacement program according to the power supply model preset inside it;

[0161] Step 1507: the processor control unit 121 sends the remote control value to the relay contactor execution unit 123, and the relay contactor execution unit 123 controls the servo execution unit 124 to operate, and then controls the conversion switch SA4 to switch to gear 2;

[0162] Step 1508: Bypass the UPS2 power supply, and use the mains power or generator to directly supply power to key equipment;

[0163] Step 1509: The battery swap operation is completed, and the battery swap program can be exited;

[0164] The solution of the present invention is based on the actual use and operation of the shelter vehicle, has complete functions, is closer to the field mobile and rapid deployment, simplifies the emergency troubleshooting steps, reduces the skill requirements of the operators, shortens the operation preparation time, and can further improve the mobility, adaptability, survivability and security of the shelter vehicle during field operations.

[0165] The above embodiments show and describe the basic principles and main features of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A multi-channel power supply control system for a shelter vehicle, characterized in that: It comprises a power supply input module (10), a power supply detection and display module (11), a power supply branch switching module (12) and a power supply output module (13); The power supply input module (10), the power supply detection and display module (11), the power supply branch switching module (12) and the power supply output module (13) are connected in sequence, wherein the power supply input module (10) is used to connect to a plurality of external input power sources and output power to the power supply detection and display module (11) and the power supply branch switching module (12); the power supply detection and display module (11) is used to display various power supply parameters and environmental parameters in the system; the power supply branch switching module (12) receives power supply parameters for detection, completes power supply branch switching according to demand, and sends the branch switching result to the power supply detection and display module (11); the power supply output module (13) is connected to various electrical devices and supplies power to various electrical devices.

2. The multi-channel power supply control system for a shelter vehicle according to claim 1 is characterized in that: The power input module (10) comprises a plurality of external power supplies, an automatic switching switch, and a surge protector; The external power sources are connected to the system through automatic switching switches and are connected through leakage protectors and power supply detection and display modules (11) respectively; A surge protector is also provided on the power supply input module (10).

3. The multi-channel power supply control system for a shelter vehicle according to claim 1 is characterized in that: The power supply detection and display module (11) comprises a plurality of ammeters, voltmeters, frequency meters, sensors, display screens, detection and display circuits, and status indicator lights, which are respectively used to collect power supply parameters and environmental parameters of the entire system.

4. The multi-channel power supply control system for a shelter vehicle according to claim 3 is characterized in that: The sensors include a power sensor, an altitude sensor, and an oxygen content sensor.

5. The multi-channel power supply control system for a shelter vehicle according to claim 1 is characterized in that: The power supply branch switching module (12) comprises a processor control unit (121), a switch control unit (122), a relay contactor execution unit (123), a servo execution unit (124) and a conversion switch unit (125); The processor control unit (121) is respectively connected to the power supply detection display module (11), the switch control unit (122) and the relay contactor execution unit (123), and is used to perform calculations on various power supply parameters and environmental parameters in the system, determine the best power supply channel, and generate a control quantity signal to transmit to the relay contactor execution unit (123) and the switch control unit (122); The switch control unit (122) is connected to the processor control unit (121) and the relay contactor execution unit (123) respectively, and is used to receive external switch control instructions and transmit corresponding control signals to the processor control unit (121) and the relay contactor execution unit (123); The relay contactor execution unit (123) is respectively connected to the processor control unit (121) and the switch control unit (122), and receives control signals transmitted by the processor control unit (121) and the switch control unit (122); the relay contactor execution unit (123) is connected to the servo execution unit (124), and controls the start and stop of the generator and the action of the servo execution unit (124) according to the control signals; The servo execution unit (124) is connected to the conversion switch unit (125), receives the control signal of the relay contactor execution unit (123), and completes the gear switching control of the conversion switch unit (125).

6. The multi-channel power supply control system for a shelter vehicle according to claim 5 is characterized in that: The processor control unit (121) receives the generator power supply parameters collected by the power supply detection and display module (11), and determines the generator state based on the parameters. If it is determined that the generator power supply is normal, no power supply switching operation is performed; if it is determined that the generator power supply is abnormal, the following power supply switching operation is performed: The processor control unit (121) performs a power supply switching operation according to its preset power supply and distribution model: the processor control unit (121) sends a remote control value to the relay contactor execution unit (123), and the relay contactor execution unit (123) controls the generator to start according to the remote control value; After the generator receives the start remote control quantity, it ignites and starts to supply power to the power supply mains.

7. The multi-channel power supply control system for a shelter vehicle according to claim 5 is characterized in that: The processor control unit (121) determines whether a power switching instruction issued by the switch control unit (122) is received, and if not, does not perform a power supply switching operation; if so, performs a power supply switching operation; The processor control unit (121) receives the power supply parameter information collected by the power supply detection and display module (11), determines the current power supply quality, and does not perform the power supply switching operation if the power supply quality is determined to be qualified, and performs the power supply switching operation if the power supply quality is determined to be unqualified; The power supply switching operation is: The processor control unit (121) sends a remote control value to the relay contactor execution unit (123), the relay contactor execution unit (123) controls the servo execution unit (124) to operate, and the servo execution unit (124) controls the conversion switch unit (125) to switch the gear position of the switch, thereby switching the power supply line.

8. The multi-channel power supply control system for a shelter vehicle according to claim 5 is characterized in that: The processor control unit (121) determines whether a power switching instruction issued by the switch control unit (122) is received, and if not, does not perform a power supply switching operation; if so, performs a power supply switching operation: The processor control unit (121) receives the power supply parameter information collected by the power supply detection and display module (11), and determines whether the current operation is plateau operation according to the power supply parameter information, and if so, performs a power supply switching operation, and if not, does not perform a power supply switching operation; The power supply switching operation is: The processor control unit (121) sends a remote control value to the relay contactor execution unit (123), the relay contactor execution unit (123) controls the servo execution unit (124) to operate, and the servo execution unit (124) controls the conversion switch unit (125) to switch the gear position of the switch, thereby switching the power supply line.

9. The multi-channel power supply control system for a shelter vehicle according to claim 5, characterized in that: The processor control unit (121) determines whether a power switching instruction issued by the switch control unit (122) is received, and if not, does not perform a power supply switching operation; if so, performs a power supply switching operation: The processor control unit (121) receives the power supply parameter information collected by the power supply detection and display module (11), and determines the current power supply quality according to the power supply parameter information, and if the power supply quality is determined to be qualified, no power supply switching operation is performed; if the power supply quality is determined to be unqualified, a power supply switching operation is performed; The power supply switching operation is: The processor control unit (121) sends a remote control value to the relay contactor execution unit (123), the relay contactor execution unit (123) controls the servo execution unit (124) to operate, and the servo execution unit (124) controls the conversion switch unit (125) to switch the gear of the switch, thereby switching the power supply line.

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