CN115549265A - Computer lab energy monitoring system - Google Patents
Computer lab energy monitoring system Download PDFInfo
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- CN115549265A CN115549265A CN202211495862.7A CN202211495862A CN115549265A CN 115549265 A CN115549265 A CN 115549265A CN 202211495862 A CN202211495862 A CN 202211495862A CN 115549265 A CN115549265 A CN 115549265A
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a machine room energy monitoring system which comprises a bidirectional switch switching matrix circuit, a battery box, a discharge metering module and a controller, wherein the bidirectional switch switching matrix circuit is respectively connected with a plurality of servers; a plurality of battery boxes are respectively arranged; the discharge metering modules are respectively provided with a plurality of discharge metering modules so as to meter the discharge electric quantity of each battery box; the controller is respectively connected with the bidirectional switch switching matrix circuit and the discharge metering module so as to switch and control the bidirectional switch switching matrix circuit according to the number of the servers and the electric quantity of each battery box. Therefore, when the server changes, the controller controls the bidirectional switch switching matrix circuit to switch the power supply channels, so that power is continuously supplied to the server, the power utilization of each server can be accurately metered through the discharge metering module, and the battery boxes are reasonably distributed.
Description
Technical Field
The invention relates to the technical field of server room power supply, in particular to a machine room energy monitoring system.
Background
In the power supply of the computer room, the stability of the power supply is very important, and the unstable power supply may cause a service stop phenomenon of the server due to the power supply problem. In severe cases, it may even lead to the breakdown of the whole server, resulting in the failure to provide the corresponding online service.
The existing servers are mainly powered by mains supply alternating current, and in order to ensure stable power supply of the servers, a battery box is usually provided for each server, so that when the mains supply alternating current cannot supply power normally, the servers are continuously supplied with power through the battery boxes, although the power supply for the servers is relatively simple through the battery boxes which are paired one by one. However, the servers are usually evacuated or increased for various reasons during the use process, and if other supplier servers are added, the new battery box needs to be paired again, so that the problem of resource waste is caused. Therefore, a new circuit structure is required to be adopted for accurately calculating the distribution of the battery box and the power of each server supplier after the distribution of the battery box.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, the invention aims to provide a machine room energy monitoring system.
In order to achieve the above object, an embodiment of the present invention provides a machine room energy monitoring system, including:
the bidirectional switch switching matrix circuit is respectively connected with the plurality of servers;
a plurality of battery boxes are respectively arranged;
the discharge metering modules are respectively provided with a plurality of battery boxes, and each battery box is respectively connected with the bidirectional switch switching matrix circuit through the discharge metering module so as to meter the discharge electric quantity of the battery box;
and the controller is respectively connected with the bidirectional switch switching matrix circuit and the discharge metering module so as to carry out switching control on the bidirectional switch switching matrix circuit according to the number of the servers and the electric quantity of each battery box.
Further, according to an embodiment of the present invention, the bidirectional switch switching matrix circuit includes:
the server channel matrix comprises a first public end and eight first channel switching ends, the first public end is used for connecting a server, and the eight first channel switching ends are respectively used for channel switching;
the discharge channel matrix comprises a second common end and eight second channel switching ends, the second common end is used for being connected with a battery box through one discharge metering module, and the eight second channel switching ends are respectively used for channel switching;
the number of the server channel matrixes and the number of the discharge channel matrixes are respectively eight, and each server channel matrix is communicated with one discharge channel matrix.
Further, according to an embodiment of the present invention, the server channel matrix or the discharge channel matrix includes:
the public end of the first double-channel switch is connected with the server or the discharge metering module;
a second dual channel switch having a common terminal connected to the first channel terminal of the first dual channel switch;
a third dual-channel switch, a common terminal of the third dual-channel switch being connected to the second channel terminal of the first dual-channel switch;
a fourth dual-channel switch having a common terminal connected to the first channel terminal of the second dual-channel switch;
a fifth dual-channel switch, a common terminal of the fifth dual-channel switch connected to a second channel terminal of the second dual-channel switch;
a sixth dual-channel switch, a common terminal of the sixth dual-channel switch connected to the first channel terminal of the third dual-channel switch;
and the public end of the seventh double-channel switch is connected with the second channel end of the third double-channel switch.
Further, according to an embodiment of the present invention, any one of the first dual-channel switch, the second dual-channel switch, the third dual-channel switch, the fourth dual-channel switch, the fifth dual-channel switch, the sixth dual-channel switch, or the seventh dual-channel switch includes:
a double-channel relay K1;
a collector of the triode Q1 is connected with a first controlled end of the relay K1, a second controlled end of the relay K1 is connected with a power supply, an emitter of the triode Q1 is connected with a reference ground, and a base of the triode Q1 is further connected with a control end of the controller through a resistor R2;
and the anode of the diode D1 is connected with the collector of the triode Q1, and the cathode of the diode D1 is connected with the second controlled end of the relay K1.
Further, according to an embodiment of the present invention, the discharge metering module includes:
a current detection circuit for detecting a current on a power supply line;
the positive-phase input end of the integrated operational amplifier U1 is connected with the positive end of the battery box through a resistor R15 and a resistor R11, the negative-phase input end of the integrated operational amplifier U1 is connected with a reference ground through a resistor R12, and the output end of the integrated operational amplifier U1 is connected with the negative-phase input end of the integrated operational amplifier U1 through a resistor R13;
the non-inverting input end of the integrated operational amplifier U3 is connected with the output end of the current detection circuit through a resistor R16, the inverting input end of the integrated operational amplifier U3 is connected with a reference ground through a resistor R17, and the output end of the integrated operational amplifier U3 is connected with the inverting input end of the integrated operational amplifier U3 through a resistor R18;
and two input ends of the multiplier U4 are respectively connected with the output ends of the integrated operational amplifier U1 and the integrated operational amplifier U3, and the output end of the multiplier U4 is connected with the electric quantity sampling end of the controller.
Further, according to an embodiment of the present invention, the current detection circuit includes:
the primary coil L1 is connected in series with a power supply wire of the battery box;
the detection current coil L2 is used for detecting the current of the primary coil L1;
the emitting electrode of the triode Q2 is connected with a power supply;
the emitting electrode of the triode Q3 is connected with a power supply;
a collector of the triode Q4 is connected with a collector of the triode Q2, and a base of the triode Q4 is connected with a base of the triode Q2;
a triode Q5, wherein the collector of the triode Q5 is connected with the collector of the triode Q3, and the base of the triode Q5 is connected with the base of the triode Q3;
one end of the resistor R7 is connected with the emitting electrodes of the triode Q4 and the triode Q5, and the other end of the resistor R7 is connected with the reference ground;
one end of the detection resistor R6 is connected with one end of the detection current coil L2, the other end of the detection resistor R6 is connected with the collecting electrodes of the triode Q2 and the triode Q4, and the other end of the detection current coil L2 is connected with the collecting electrodes of the triode Q3 and the triode Q5;
and two input ends of the current magnitude operational circuit are respectively connected with two ends of the detection resistor R6, and an output end of the current magnitude operational circuit is connected with an input end of the integrated operational amplifier U3.
Further, according to an embodiment of the present invention, the current amount operation circuit includes:
integrated operational amplifier U2, integrated operational amplifier U2's inverting input pass through resistance R8 with detection resistance R6's one end is connected, integrated operational amplifier U2's inverting input still is connected with resistance R9's one end, resistance R9's the other end pass through electric capacity C2 with integrated operational amplifier U2's output is connected, integrated operational amplifier U2's normal phase input pass through resistance R14 with detection resistance R6's the other end is connected, integrated operational amplifier U2's output pass through resistance R10 with integrated operational amplifier U3's input is connected.
Further, according to an embodiment of the present invention, the current detection circuit further includes:
one end of the resistor R4 is connected with a power supply, and the other end of the resistor R4 is connected with the base electrodes of the triode Q3 and the triode Q5;
and one end of the resistor R5 is connected with a power supply, and the other end of the resistor R5 is connected with the base electrodes of the triode Q2 and the triode Q4.
Further, according to an embodiment of the present invention, the discharge metering module further includes:
the primary coil L1 is connected with the positive end of the battery box through the diode D2, the anode of the diode D2 is connected with the positive end of the battery box, and the cathode of the diode D2 is connected with the primary coil L1;
and the positive phase input end of the integrated operational amplifier U1 is connected with the positive end of the battery box through the diode D3, the anode of the diode D3 is connected with the positive end of the battery box, and the cathode of the diode D3 is connected with the positive phase input end of the integrated operational amplifier U1.
Further, according to an embodiment of the present invention, the system for monitoring energy in the computer room further includes:
and the alternating current-direct current conversion module is respectively connected with the power line and the battery box so as to charge the battery box after alternating current is converted into direct current.
The machine room energy monitoring system provided by the embodiment of the invention is respectively connected with a plurality of servers through the bidirectional switch switching matrix circuit; a plurality of battery boxes are respectively arranged; the discharge metering modules are respectively provided with a plurality of discharge metering modules, and each battery box is respectively connected with the bidirectional switch switching matrix circuit through the discharge metering modules so as to meter the discharge electric quantity of the battery box; the controller is respectively connected with the bidirectional switch switching matrix circuit and the discharge metering module so as to switch and control the bidirectional switch switching matrix circuit according to the number of the servers and the electric quantity of each battery box. Therefore, when the server changes, the controller controls the bidirectional switch switching matrix circuit to switch the power supply channels, so that power is continuously supplied to the server, and the discharging metering module can accurately meter the power consumption of each server, so that the battery boxes are reasonably distributed.
Drawings
Fig. 1 is a schematic structural diagram of a machine room energy monitoring system provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of a bidirectional switch switching matrix circuit structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another bidirectional switch switching matrix circuit structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dual channel switch circuit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a discharge metering module according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 3, an embodiment of the invention provides a machine room energy monitoring system, including: the system comprises a bidirectional switch switching matrix circuit, a battery box, a discharge metering module and a controller, wherein the bidirectional switch switching matrix circuit is respectively connected with a plurality of servers; the bidirectional switch switching matrix circuit is a multi-channel matrix switch. Thus, the random switching among multiple channels can be realized.
A plurality of battery boxes are respectively arranged; the discharge metering modules are respectively provided with a plurality of discharge metering modules, and each battery box is respectively connected with the bidirectional switch switching matrix circuit through the discharge metering modules so as to meter the discharge electric quantity of the battery box; specifically, a plurality of servers are respectively provided at the channel end of one side of the switching matrix circuit. Such as the a channel, B channel, C channel, D channel, E channel, F channel, G channel, H channel in fig. 2. In the embodiment of fig. 2, 8 servers may be connected by 8 lanes. The battery boxes and the discharge metering modules are respectively arranged at the channel end of the other side of the switch switching matrix circuit. Such as the a _ channel, B _ channel, C _ channel, D _ channel, E _ channel, F _ channel, G _ channel, H _ channel in fig. 2. Like this, can connect 8 respectively and discharge the metering module, through every 8 battery boxes can be connected respectively to the metering module that discharges to a metering module that discharges can carry out corresponding measurement to the electric quantity of a battery box. It should be noted that, in the specific embodiment, the multiple-group layout may be performed in units of 8 battery boxes. For example, 32 servers can be placed in the machine room, and the layout can be divided into 8 groups. The 8 servers are used as a group of arbitrary switching channels, and the connecting line for arbitrary switching is considered to be relatively complex. If 16 servers are added to a group, the connecting lines of the matrix switch are very complicated. Are prone to failure (as shown in figure 3). If 4 servers are in a group, it may be switched to supply battery boxes too few. Therefore, in this embodiment, 8 servers are selected as a group, and power supply is switched corresponding to 8 battery boxes, so that stability of power supply is ensured.
The controller is respectively connected with the bidirectional switch switching matrix circuit and the discharge metering module so as to switch and control the bidirectional switch switching matrix circuit according to the number of the servers and the electric quantity of each battery box.
Specifically, as shown in fig. 1, the bidirectional switch switching matrix circuit may be controlled by the controller to select a power supply channel, and any one of the servers is selected from the battery box to supply power to the server. When the number of the servers is the same as that of the battery boxes, one power box is communicated with one server. Thus, power supply between the battery box and the server can be realized one by one. When part of the servers are evacuated and one or more new different servers are added, it is also necessary to select a battery box to supply power to the servers of different manufacturers. For example, any one of 8 battery boxes can be selected to supply power to any one of the servers provided in the first to eighth servers by controlling the bidirectional switch switching matrix circuit. Due to the fact that the battery boxes are in a power failure or fault condition, when one battery box is in a power failure, the bidirectional switch switching circuit can be switched to other power supply channels, and other battery boxes are selected to supply power to the server arranged at any position on the other side of the bidirectional switch switching matrix circuit, and therefore power supply stability of the server can be guaranteed. The voltage and electric quantity information of the battery boxes can be read through the discharge metering modules corresponding to the battery boxes and transmitted to the controller, and the selection control of the channel of the bidirectional switch switching matrix circuit is carried out through the controller. Considering the problem of failure or no electricity of the battery boxes, one end of the bidirectional switch switching matrix circuit can be connected with 8 battery boxes, and the other end of the bidirectional switch switching matrix circuit can be connected with 7 servers. Thus, when one battery box is out of power or fails, the other battery box can be switched to the standby battery box.
Referring to fig. 2, the bidirectional switch switching matrix circuit includes: the device comprises a server channel matrix and a discharge channel matrix, wherein the server channel matrix comprises a first public end and eight first channel switching ends, the first public end is used for being connected with a server, and the eight first channel switching ends are respectively used for channel switching; as shown on the left side of fig. 2, the first common end of one of the server channel matrices is marked as a channel, and is connected to a server through the a channel and supplies power to the connected server. Eight first channel switching ends of one of the server channel matrices are respectively marked as A1, A2, A3, A4, A5, A6, A7, and A8. The eight first channel switching ends A1, A2, A3, A4, A5, A6, A7 and A8 can be respectively switched to be communicated with the first common end a channel under the control of a controller. The structures of the remaining seven server channel matrices are the same as the server channel matrix, and are not repeated herein.
The discharge channel matrix comprises a second common end and eight second channel switching ends, the second common end is used for being connected with a battery box through a discharge metering module, and the eight second channel switching ends are respectively used for channel switching; similarly, as shown on the right side of fig. 2, the first common end of one of the discharge channel matrices is labeled as an a _ channel, and is connected to a discharge metering module and a battery box through the a _ channel, and supplies power to a connected server. Eight first channel switching ends of one of the discharge channel matrixes are respectively marked as A1, B1, C1, D1, E1, F1, G1 and H1. The eight first channel switching ends A1, B1, C1, D1, E1, F1, G1, H1 can be switched to communicate with the first common end a _ channel under the control of a controller, respectively. The structure of the remaining seven discharge channel matrices is the same as the discharge channel matrix, and the description thereof is omitted.
The number of the server channel matrixes and the number of the discharge channel matrixes are eight, and each server channel matrix is communicated with one discharge channel matrix. As shown in fig. 2, eight server channel matrixes are respectively located at the left position, and eight discharge channel matrixes are respectively located at the right position. The eight first channel switching ends of the eight server channel matrixes are in cross connection with the eight first channel switching ends of the eight discharge channel matrixes, so that the first public end of each server channel matrix can be communicated with the public end of any one discharge channel matrix. Therefore, the switching conduction of the channels between the server connected to the first public end of each server channel matrix and the battery box connected to the public end of any one discharge channel matrix can be realized.
Referring to fig. 3, in an embodiment of the present invention, one of the server channel matrix or the discharge channel matrix includes: the system comprises a first double-channel switch, a second double-channel switch, a third double-channel switch, a fourth double-channel switch, a fifth double-channel switch, a sixth double-channel switch and a seventh double-channel switch, wherein a common end of the first double-channel switch is connected with a server or a discharge metering module; the common end of the second double-channel switch is connected with the first channel end of the first double-channel switch; the common end of the third dual-channel switch is connected with the second channel end of the first dual-channel switch; a common terminal of the fourth dual-channel switch is connected with a first channel terminal of the second dual-channel switch; a common terminal of the fifth dual-channel switch is connected with a second channel terminal of the second dual-channel switch; a common end of the sixth two-channel switch is connected with a first channel end of the third two-channel switch; and the common end of the seventh dual-channel switch is connected with the second channel end of the third dual-channel switch.
As shown in fig. 3, the circuit structures of the server channel matrix and the discharge channel matrix are the same, and both are formed by connecting seven dual-channel switches. Through the series connection and parallel connection of seven dual-channel switches, one common end can be expanded into eight channel switching ends. With sixteen such matrix circuits, an arbitrary channel-switching matrix circuit of eight in and eight out can be connected in the manner according to fig. 2.
Referring to fig. 4, any one of the first dual-channel switch, the second dual-channel switch, the third dual-channel switch, the fourth dual-channel switch, the fifth dual-channel switch, the sixth dual-channel switch, or the seventh dual-channel switch includes: the power supply control circuit comprises a double-channel relay K1, a triode Q1 and a diode D1, wherein a collector of the triode Q1 is connected with a first controlled end of the relay K1, a second controlled end of the relay K1 is connected with a power supply, an emitter of the triode Q1 is connected with a reference ground, and a base of the triode Q1 is also connected with one control end of the controller through a resistor R2; the anode of the diode D1 is connected with the collector of the triode Q1, and the cathode of the diode D1 is connected with the second controlled end of the relay K1.
As shown in fig. 4, fig. 4 is a circuit structure diagram of a dual-channel switch according to an embodiment of the present invention, where the circuit structure employs a dual-channel relay J1, and as shown in fig. 4, a channel a is a common channel end, a _1 channel is a first channel end, and a _2 channel is a second channel end. And the triode Q1, the resistor R2 and the resistor R3 are used as driving circuits and used for driving the switching of the channels of the dual-channel relay J1. For example, when the controller outputs a high level signal, the triode Q1 is turned on, so that the dual-channel relay J1 generates a magnetic attraction force, the switch of the relay J1 can be adsorbed to the first channel end, and the common end is turned on with the first channel. Conversely, when the controller outputs a low level, the switch of the relay J1 is located at the second channel end, and the common end is conducted with the second channel.
Referring to fig. 5, the discharge metering module includes: the current detection circuit is used for detecting the current on the power supply line; therefore, the current amount on the power supply line can be obtained, and the power supply current of the battery box can be obtained because the current amount on the power supply line is equal to the output current of the battery box.
The positive-phase input end of the integrated operational amplifier U1 is connected with the positive end of the battery box through a resistor R15 and a resistor R11, the negative-phase input end of the integrated operational amplifier U1 is connected with a reference ground through a resistor R12, and the output end of the integrated operational amplifier U1 is connected with the negative-phase input end of the integrated operational amplifier U1 through a resistor R13; as shown in fig. 5, the integrated operational amplifier U1 constitutes an isolation operational amplifier circuit, which can isolate and operate the output voltage of the battery box for output.
The non-inverting input end of the integrated operational amplifier U3 is connected with the output end of the current detection circuit through a resistor R16, the inverting input end of the integrated operational amplifier U3 is connected with a reference ground through a resistor R17, and the output end of the integrated operational amplifier U3 is connected with the inverting input end of the integrated operational amplifier U3 through a resistor R18; the integrated operational amplifier U3 forms an isolation operational amplifier circuit, can convert the current amount information output by the current detection circuit into a corresponding voltage signal, and detects the output voltage signal to be isolated and operated and then output.
Two input ends of the multiplier U4 are respectively connected with output ends of the integrated operational amplifier U1 and the integrated operational amplifier U3, and an output end of the multiplier U4 is connected with an electric quantity sampling end of the controller. In an embodiment of the present invention, the multiplier U4 is an analog multiplier, so that the battery voltage quantity operation signal and the power supply current quantity signal output by the integrated operational amplifier U1 and the integrated operational amplifier U3 are multiplied, the power supply power signal of the battery box is directly output to the controller, and the controller can acquire the power signal in real time, so as to accurately obtain the discharging electric quantity information of the battery box. Because every all be equipped with one on the power supply circuit of battery box the measurement module that discharges, and every the power take off end of the measurement module that discharges all with the power sampling end of controller is connected for the controller can acquire every battery box power in real time, and can accurately calculate the electric quantity that discharges of each battery box according to power, can realize the independent calculation of the electric quantity that uses of every server.
Referring to fig. 5, the current detection circuit includes: the device comprises a primary coil L1, a detection current coil L2, a triode Q3, a triode Q4, a triode Q5, a resistor R7, a detection resistor R6 and a current magnitude operation circuit, wherein the primary coil L1 is connected in series with a power supply line of the battery box; the detection current coil L2 is used for detecting the current of the primary coil L1; the emitting electrode of the triode Q2 is connected with a power supply; the emitting electrode of the triode Q3 is connected with a power supply; the collector of the triode Q4 is connected with the collector of the triode Q2, and the base of the triode Q4 is connected with the base of the triode Q2; the collector of the triode Q5 is connected with the collector of the triode Q3, and the base of the triode Q5 is connected with the base of the triode Q3; one end of the resistor R7 is connected with the emitting electrodes of the triode Q4 and the triode Q5, and the other end of the resistor R7 is connected with a reference ground; one end of the detection resistor R6 is connected with one end of the detection current coil L2, the other end of the detection resistor R6 is connected with the collector electrodes of the triode Q2 and the triode Q4, and the other end of the detection current coil L2 is connected with the collector electrodes of the triode Q3 and the triode Q5; two input ends of the current magnitude operational circuit are respectively connected with two ends of the detection resistor R6, and an output end of the current magnitude operational circuit is connected with an input end of the integrated operational amplifier U3.
Specifically, as shown in fig. 5, an automatic oscillation starting circuit is formed among the transistor Q2, the transistor Q3, the transistor Q4, and the transistor Q5, and assuming that at the beginning, the transistor Q2 is turned on, and at this time, the emission of the transistor Q2 is at a high level VCC, which makes the transistor Q5 also turned on, so that the power supply VCC can pass through the transistor Q2 and the transistor Q5, and the VCC power supply passes through the transistor Q2, the resistor R6, the detection current coil L2, the transistor Q5, and the resistor R7 to reach a reference ground, which can charge the detection current coil L2, and the current of the detection current coil L2 can be gradually increased during the charging process, and when the current of the detection current coil L2 is increased to a certain current value, the current of the resistor R7 is also increased to a certain current value, and the voltage value of the resistor R7 is increased to a certain voltage value, which makes the collector voltage of the transistor Q5 be increased to a certain voltage value, and the high voltage value acts on the base of the transistor Q4 and the transistor Q5, and the base of the transistor Q3 and the base of the transistor Q5 are turned off at the same time. At this time, the triode Q3 and the triode Q4 are conducted, the detection current coil L2 is discharged and reversely charged, and when the current amount of the detection current coil L2 reaches a certain current value again, the voltage of the resistor R7 is increased to a certain voltage value. And again causing transistor Q2 and transistor Q5 to be on and transistor Q3 and transistor Q4 to be off. In this manner, the current in the detection current coil L2 is repeatedly charged and discharged. Under the influence of no magnetic field, the current of the detection current coil L2 is in a symmetrical relation. The total amount of current flowing through resistor R6 is zero for one or more cycles. When current is supplied to the power supply line, the magnetic flux generated by the primary coil L1 affects the current of the detection current coil L2, so that the current of the detection current coil L2 is asymmetrically offset. The amount of offset is related to the amount of current in the supply line in an operational manner, i.e. so that the total amount of current through resistor R6 during one or more cycles is not zero due to the asymmetric offset. In this way, the current amount of the detection current coil L2 can be converted into a voltage amount by the resistor R6 and output. The voltage of the resistor R6 is calculated through the current magnitude operation circuit, and the current magnitude on the power supply line can be obtained, so that the accurate measurement of the current magnitude on the power supply line is realized.
As shown in fig. 5, in the first embodiment of the present invention, the current amount operation circuit includes: integrated operational amplifier U2, integrated operational amplifier U2's inverting input pass through resistance R8 with detection resistance R6's one end is connected, integrated operational amplifier U2's inverting input still is connected with resistance R9's one end, resistance R9's the other end pass through electric capacity C2 with integrated operational amplifier U2's output is connected, integrated operational amplifier U2's non-inverting input pass through resistance R14 with detection resistance R6's the other end is connected, integrated operational amplifier U2's output pass through resistance R10 with integrated operational amplifier U3's input is connected. The integrated operational amplifier U2 forms an integral operational circuit, and outputs the output voltage of the resistor R6 to the positive input end of the integrated operational amplifier U3 after integral calculation, and outputs the output voltage to the multiplier for multiplication output of power after operation through the integrated operational amplifier U3.
With continued reference to fig. 5, in one embodiment of the present invention, the current detection circuit further comprises: one end of the resistor R4 is connected with a power supply, and the other end of the resistor R4 is connected with the base electrodes of the triode Q3 and the triode Q5; one end of the resistor R5 is connected with a power supply, and the other end of the resistor R5 is connected with the base electrodes of the triode Q2 and the triode Q4. The resistor R4 and the resistor R5 can form a bias circuit, certain bias voltage is provided for the base electrodes of the triode Q3 and the triode Q5 and the base electrodes of the triode Q2 and the triode Q4, and the conduction and the oscillation starting of the triode of the oscillation circuit formed by the triode Q3, the triode Q5, the triode Q2 and the triode Q4 are accelerated.
Referring to fig. 5, in one embodiment of the present invention, the discharge metering module further includes: the primary coil L1 is connected with the positive end of the battery box through the diode D2, the anode of the diode D2 is connected with the positive end of the battery box, and the cathode of the diode D2 is connected with the primary coil L1.
Specifically, through the one-way conductivity of the diode D2, it is possible to prevent the server from being burned out by outputting an inverted voltage to the server when the battery box is reversely connected.
The positive phase input end of the integrated operational amplifier U1 is connected to the positive end of the battery box through the diode D3, wherein the anode of the diode D3 is connected to the positive end of the battery box, and the cathode of the diode D3 is connected to the positive phase input end of the integrated operational amplifier U1. Specifically, through the one-way conductivity of the diode D3, it is possible to prevent the reverse voltage from being output to the current detection circuit when the battery box is reversely connected, and prevent the current detection circuit from being damaged.
Referring to fig. 1, the machine room energy monitoring system further includes: and the alternating current-direct current conversion module is respectively connected with the power line and the battery box so as to charge the battery box after alternating current is converted into direct current. As shown in fig. 1, a plurality of battery boxes can be charged at the same time by the ac-dc conversion module.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent arrangements may be substituted for some of the features of the embodiments described above. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A machine room energy monitoring system, comprising:
the bidirectional switch switching matrix circuit is respectively connected with the plurality of servers;
a plurality of battery boxes are respectively arranged;
the discharge metering modules are respectively provided with a plurality of battery boxes, and each battery box is respectively connected with the bidirectional switch switching matrix circuit through the discharge metering module so as to meter the discharge electric quantity of the battery box;
and the controller is respectively connected with the bidirectional switch switching matrix circuit and the discharge metering module so as to carry out switching control on the bidirectional switch switching matrix circuit according to the number of the servers and the electric quantity of each battery box.
2. The machine room energy monitoring system of claim 1, wherein the bidirectional switch switching matrix circuit comprises:
the server channel matrix comprises a first public end and eight first channel switching ends, wherein the first public end is used for connecting a server, and the eight first channel switching ends are respectively used for channel switching;
the discharge channel matrix comprises a second common end and eight second channel switching ends, the second common end is used for being connected with a battery box through one discharge metering module, and the eight second channel switching ends are respectively used for channel switching;
the number of the server channel matrixes and the number of the discharge channel matrixes are respectively eight, and each server channel matrix is communicated with one discharge channel matrix.
3. The machine room energy monitoring system of claim 2, wherein the server channel matrix or the discharge channel matrix comprises:
the public end of the first double-channel switch is connected with the server or the discharge metering module;
a second dual channel switch, a common terminal of the second dual channel switch being connected to a first channel terminal of the first dual channel switch;
a third dual-channel switch, a common terminal of the third dual-channel switch being connected to the second channel terminal of the first dual-channel switch;
a fourth dual-channel switch having a common terminal connected to the first channel terminal of the second dual-channel switch;
a fifth dual-channel switch having a common terminal connected to a second channel terminal of the second dual-channel switch;
a sixth dual-channel switch, a common terminal of the sixth dual-channel switch connected to the first channel terminal of the third dual-channel switch;
and a common end of the seventh dual-channel switch is connected with the second channel end of the third dual-channel switch.
4. The room energy monitoring system of claim 3, wherein any of the first dual-channel switch, the second dual-channel switch, the third dual-channel switch, the fourth dual-channel switch, the fifth dual-channel switch, the sixth dual-channel switch, or the seventh dual-channel switch comprises:
a double-channel relay K1;
a collector of the triode Q1 is connected with a first controlled end of the relay K1, a second controlled end of the relay K1 is connected with a power supply, an emitter of the triode Q1 is connected with a reference ground, and a base of the triode Q1 is further connected with a control end of the controller through a resistor R2;
and the anode of the diode D1 is connected with the collector of the triode Q1, and the cathode of the diode D1 is connected with the second controlled end of the relay K1.
5. The machine room energy monitoring system according to any one of claims 1 to 4, wherein the discharge metering module comprises:
a current detection circuit for detecting a current on a power supply line;
the positive-phase input end of the integrated operational amplifier U1 is connected with the positive end of the battery box through a resistor R15 and a resistor R11, the negative-phase input end of the integrated operational amplifier U1 is connected with a reference ground through a resistor R12, and the output end of the integrated operational amplifier U1 is connected with the negative-phase input end of the integrated operational amplifier U1 through a resistor R13;
the non-inverting input end of the integrated operational amplifier U3 is connected with the output end of the current detection circuit through a resistor R16, the inverting input end of the integrated operational amplifier U3 is connected with a reference ground through a resistor R17, and the output end of the integrated operational amplifier U3 is connected with the inverting input end of the integrated operational amplifier U3 through a resistor R18;
and two input ends of the multiplier U4 are respectively connected with the output ends of the integrated operational amplifier U1 and the integrated operational amplifier U3, and the output end of the multiplier U4 is connected with the electric quantity sampling end of the controller.
6. The machine room energy monitoring system of claim 5, wherein the current detection circuit comprises:
the primary coil L1 is connected in series with a power supply wire of the battery box;
the detection current coil L2 is used for detecting the current of the primary coil L1;
the emitting electrode of the triode Q2 is connected with a power supply;
the emitting electrode of the triode Q3 is connected with a power supply;
a collector of the triode Q4 is connected with a collector of the triode Q2, and a base of the triode Q4 is connected with a base of the triode Q2;
a collector of the triode Q5 is connected with a collector of the triode Q3, and a base of the triode Q5 is connected with a base of the triode Q3;
one end of the resistor R7 is connected with the emitting electrodes of the triode Q4 and the triode Q5, and the other end of the resistor R7 is connected with the reference ground;
one end of the detection resistor R6 is connected with one end of the detection current coil L2, the other end of the detection resistor R6 is connected with the collector electrodes of the triode Q2 and the triode Q4, and the other end of the detection current coil L2 is connected with the collector electrodes of the triode Q3 and the triode Q5;
and two input ends of the current magnitude operational circuit are respectively connected with two ends of the detection resistor R6, and an output end of the current magnitude operational circuit is connected with an input end of the integrated operational amplifier U3.
7. The machine room energy monitoring system according to claim 6, wherein the current amount arithmetic circuit comprises:
integrated operational amplifier U2, integrated operational amplifier U2's inverting input pass through resistance R8 with detection resistance R6's one end is connected, integrated operational amplifier U2's inverting input still is connected with resistance R9's one end, resistance R9's the other end pass through electric capacity C2 with integrated operational amplifier U2's output is connected, integrated operational amplifier U2's normal phase input pass through resistance R14 with detection resistance R6's the other end is connected, integrated operational amplifier U2's output pass through resistance R10 with integrated operational amplifier U3's input is connected.
8. The machine room energy monitoring system of claim 6, wherein the current detection circuit further comprises:
one end of the resistor R4 is connected with a power supply, and the other end of the resistor R4 is connected with the base electrodes of the triode Q3 and the triode Q5;
and one end of the resistor R5 is connected with a power supply, and the other end of the resistor R5 is connected with the base electrodes of the triode Q2 and the triode Q4.
9. The machine room energy monitoring system of claim 6, wherein the discharge metering module further comprises:
the primary coil L1 is connected with the positive end of the battery box through the diode D2, the anode of the diode D2 is connected with the positive end of the battery box, and the cathode of the diode D2 is connected with the primary coil L1;
and the positive phase input end of the integrated operational amplifier U1 is connected with the positive end of the battery box through the diode D3, the anode of the diode D3 is connected with the positive end of the battery box, and the cathode of the diode D3 is connected with the positive phase input end of the integrated operational amplifier U1.
10. The machine room energy monitoring system of claim 1, further comprising:
and the alternating current-direct current conversion module is respectively connected with the power line and the battery box so as to charge the battery box after alternating current is converted into direct current.
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