CN217787335U - Power supply abnormity alarm device and network safety equipment - Google Patents
Power supply abnormity alarm device and network safety equipment Download PDFInfo
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- CN217787335U CN217787335U CN202221311083.2U CN202221311083U CN217787335U CN 217787335 U CN217787335 U CN 217787335U CN 202221311083 U CN202221311083 U CN 202221311083U CN 217787335 U CN217787335 U CN 217787335U
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Abstract
The utility model discloses a power anomaly alarm device and network security equipment relates to the network security field. This power supply abnormality warning device includes: the power access unit is used for accessing at least two paths of input power supplies; the power supply state detection unit is connected with the power supply access unit and is used for detecting the power supply states of at least two paths of input power supplies and generating a control instruction according to the power supply states; and the alarm unit is connected with the power state detection unit and used for generating alarm information according to the control instruction. The utility model provides an among the prior art can't carry out the anomaly detection to multichannel input power simultaneously, the untimely technical problem of power anomaly discovery that leads to.
Description
Technical Field
The utility model relates to a network security field particularly, relates to a power anomaly alarm device and network security equipment.
Background
In recent years, network attack events in the industrial field are frequent, and great loss is caused to many enterprises, so that the security problem of the industrial internet is more and more emphasized in both countries and enterprises. The network security equipment including the industrial control firewall equipment can carry out all-around analysis, judgment and control on all data circulating in the industrial control network, so that normal production data transmission of clients can be effectively guaranteed, dispersion and propagation of illegal data and viruses in the industrial control network of the clients are completely avoided, and long-term stable operation of client production is guaranteed to the greatest extent.
In order to ensure stable operation of network security devices such as industrial control firewall devices, a multi-channel input power supply is usually provided for the industrial control firewall devices, so that when a main input power supply fails, other input power supplies can be used as standby power supplies to continue to supply power to the industrial control firewall devices. However, in the prior art, it is impossible to simultaneously detect the abnormality of multiple input power supplies, and it is only possible to periodically and respectively detect the state of each input power supply manually, and if one input power supply fails, the existing industrial control firewall device cannot automatically generate alarm information, thereby causing a problem that the abnormality of the input power supplies is not found timely.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the utility model provides a power abnormity alarm device and network security equipment to at least, solve among the prior art unable to carry out the abnormal detection to multichannel input power simultaneously, the power that leads to discovers untimely technical problem unusually.
According to the utility model discloses an aspect of the embodiment provides a power abnormity alarm device, include: the power access unit is used for accessing at least two paths of input power supplies; the power supply state detection unit is connected with the power supply access unit and used for detecting the power supply states of at least two paths of input power supplies and generating a control instruction according to the power supply states; and the alarm unit is connected with the power state detection unit and used for generating alarm information according to the control instruction.
Optionally, the power supply access unit includes: the power supply terminal is connected with the at least two input power supplies and used for obtaining electric energy from the at least two input power supplies, wherein the power supply terminal comprises a plurality of negative electrode ports and a plurality of positive electrode ports, each negative electrode port is used for being connected with the negative electrode of one input power supply, and each positive electrode port is used for being connected with the positive electrode of one input power supply; and the at least two fuses are connected with the positive ports of the power supply terminals and used for disconnecting the power supply access unit from the input power supply when the current passing through the power supply access unit exceeds a preset maximum current, wherein each fuse is connected with one positive port.
Optionally, the power state detection unit includes: the operational amplifiers are used for adjusting the input voltage of a target input power supply to a first voltage, wherein each operational amplifier is connected with one fuse, the target input power supply is the input power supply correspondingly connected with the fuse, and the first voltage is smaller than the maximum working voltage of the first chip; the first chip is connected with the at least two operational amplifiers and used for receiving the first voltage output by each operational amplifier, determining the power supply states of the at least two paths of input power supplies according to the first voltage and generating a control instruction according to the power supply states.
Optionally, the alarm unit includes: the relay is connected with the first chip and used for adjusting the connection state among a plurality of ports in the relay according to the control instruction; and the alarm is connected with the port of the relay and used for generating alarm information.
Optionally, the power supply access unit further includes: and the at least two first diodes are used for controlling the current direction in the power supply access unit, wherein the current input end of each first diode is connected with one fuse.
Optionally, the power supply access unit further includes: and the at least two second-class diodes are used for removing static electricity generated in the power supply access unit, wherein each second-class diode is connected with the current input end of one first-class diode and one negative electrode port of the power supply terminal.
Optionally, the power supply access unit further includes: the magnetic bead groups are used for filtering high-frequency noise and spike interference signals on a power line in the power access unit, each magnetic bead group is composed of a plurality of magnetic beads, and each magnetic bead group is connected with one second-class diode.
Optionally, the power supply access unit further includes: the device comprises at least two capacitor groups and a magnetic bead group, wherein the at least two capacitor groups are used for being combined with the magnetic bead group to jointly filter high-frequency noise and spike interference signals on a power line, each capacitor group is composed of a plurality of capacitors, and each capacitor group is connected with one magnetic bead group.
Optionally, the power supply access unit further includes: and the second chip is connected with the current output end of the first diode and used for adjusting the voltage output by the first diode into a second voltage, wherein the second voltage is the working voltage of the alarm unit and the power state detection unit.
According to an aspect of the embodiments of the present invention, there is provided a network security device, which includes the above power supply abnormality alarm device.
In the method, the power supply state detection unit is used for detecting the power supply states of at least two input power supplies at the same time, the power supply access unit used for accessing the at least two input power supplies is arranged, then the power supply state detection unit is connected with the power supply access unit and used for detecting the power supply states of the at least two input power supplies and generating a control instruction according to the power supply states, and finally the alarm unit is connected with the power supply state detection unit and used for generating alarm information according to the control instruction.
As can be seen from the above, in the power supply abnormality alarm device of the present application, the power supply access unit can simultaneously access at least two input power supplies, and the power supply state detection unit can detect the power supply states of the at least two input power supplies, thereby overcoming the technical defect that the multiple input power supplies cannot be simultaneously detected for abnormality in the prior art. In addition, the power supply state detection unit can also generate a control instruction according to the power supply state, and the alarm unit connected with the power supply state detection unit can generate alarm information according to the control instruction, so that the power supply abnormity alarm device further solves the problem that in the prior art, when the input power supply fails, the network safety equipment cannot automatically generate the alarm information, and the effect of improving the response timeliness of the input power supply abnormity information is achieved.
Therefore, the power supply abnormity warning device achieves the purpose of automatically detecting the power supply state of the multi-path input power supply, achieves the effect of finding abnormal input power supplies more timely, and solves the technical problem that the abnormal power supplies cannot be found timely due to the fact that abnormal detection cannot be carried out on the multi-path input power supplies simultaneously in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of an alternative power supply abnormality warning device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power terminal according to an embodiment of the present invention;
fig. 3 is a partial block diagram of a power access unit according to an embodiment of the present invention;
fig. 4 is an alternative second chip connection diagram according to an embodiment of the invention;
fig. 5 is a block diagram of an alternative power supply abnormality warning device according to an embodiment of the present invention.
100-a power access unit; 200-a power state detection unit; 300-an alarm unit; 400-a power supply terminal; 500-a second chip; 600-a first chip; 700-a relay; 800-alarm;
301-a first fuse; 302-a second fuse; 303 — first diode; 304-a second diode; 305-a third diode; 306-a fourth diode; 307-a first set of magnetic beads; 308-a second set of magnetic beads; 309-a first capacitor bank; 310-a second capacitor bank; 401 — a first port; 402-a second port; 403-a third port; 404-a fourth port; 405-a fifth port; 406-a sixth port; 601-a first operational amplifier; 602-second operational amplifier.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
According to the utility model discloses the embodiment provides a power supply abnormity alarm device. Wherein, fig. 1 is a schematic diagram of an optional power supply abnormality alarm device according to the embodiment of the present invention, as shown in fig. 1, in the power supply abnormality alarm device of the present application, including: a power access unit 100, a power state detection unit 200 and an alarm unit 300.
The power supply access unit 100 is used for accessing at least two paths of input power supplies; the power state detection unit 200 is connected with the power access unit 100, and is used for detecting the power supply states of at least two paths of input power supplies and generating a control instruction according to the power supply states; and the alarm unit 300 is connected with the power state detection unit 200 and is used for generating alarm information according to the control instruction.
Specifically, the power access unit 100 at least includes a power terminal 400, a fuse, a first type diode, a second type diode, a magnetic bead, a capacitor, and a second chip 500, and the power access unit 100 may be understood as a circuit system formed by the above electronic components. In addition, the power access unit 100 can access at least two input power supplies, and the input voltage between each power supply can be different, for example, the power access unit 100 can access two input power supplies, and the input voltages of the two input power supplies are respectively 9V and 36V; the power supply access unit 100 can also access four input power supplies, and the input voltages of the four input power supplies are respectively 9V, 12V, 24V and 36V. The number of input power sources and the input voltage value of each input power source are not particularly limited in the present application.
It should be noted that in the present application, the number of fuses, the number of diodes of the first type, the number of diodes of the second type, the number of magnetic beads, and the number of capacitors in the power access unit 100 are related to the number of input power lines to be accessed by the power access unit 100.
In addition, the power state detection unit 200 at least includes: an operational amplifier and a first chip 600. The power state detection unit 200 may be understood as a circuit system composed of an operational amplifier and the first chip 600. In the power state detection unit 200, the number of operational amplifiers is also related to the number of input power lines. The alarm unit 300 described above includes at least: relay 700 and alarm 800.
As can be seen from the above, in the power supply abnormality alarm device of the present application, at least two input power supplies can be simultaneously connected through the power connection unit 100, and the power supply state of at least two input power supplies can be detected through the power state detection unit 200, so that the technical defect that abnormality detection cannot be simultaneously performed on multiple input power supplies in the prior art is overcome. In addition, because the power state detection unit 200 can also generate a control instruction according to the power supply state, and the alarm unit 300 connected to the power state detection unit 200 can generate alarm information according to the control instruction, the power abnormality alarm device in the present application also solves the problem that the network security device cannot automatically generate alarm information when the input power fails in the prior art, thereby achieving the effect of improving the response timeliness of the input power abnormality information.
Therefore, the power supply abnormity alarm device achieves the purpose of automatically detecting the power supply state of the multi-channel input power supply, achieves the effect of finding the abnormal input power supply more timely, and solves the technical problem that the abnormal power supply cannot be found out timely due to the fact that the abnormal detection cannot be carried out on the multi-channel input power supply in the prior art.
In an alternative embodiment, the power access unit 100 comprises: a power terminal 400 connected to the at least two input power sources for obtaining power from the at least two input power sources, wherein the power terminal 400 includes a plurality of negative ports and a plurality of positive ports, each negative port is used for connecting a negative electrode of one input power source, and each positive port is used for connecting a positive electrode of one input power source; and at least two fuses connected to the positive terminals of the power terminals 400 for disconnecting the power access unit 100 from the input power when the current passing through the power access unit 100 exceeds a preset maximum current, wherein each fuse is connected to one of the positive terminals.
Specifically, the power terminal 400 may be a multi-pin phoenix terminal block, as shown in fig. 2, fig. 2 is a six-pin phoenix terminal block, where each pin corresponds to one port, and in the phoenix terminal block in fig. 2, there are three negative ports and three positive ports, the three negative ports are a first port 401, a third port 403, and a fifth port 405, and the three positive ports are a second port 402, a fourth port 404, and a sixth port 406, respectively. The third port 403 and the fourth port 404 are used for connecting the alarm 800.
In an alternative embodiment, for convenience of description, the power supply abnormality warning device in the present application will be described below by taking the power supply access unit 100 accessing two input power supplies as an example.
When the power access unit 100 accesses two input power sources, the application may use the first port 401 in fig. 2 to connect the negative electrode of the first input power source in the two input power sources, use the second port 402 in fig. 2 to connect the positive electrode of the first input power source in the two input power sources, use the fifth port 405 in fig. 2 to connect the negative electrode of the second input power source in the two input power sources, and use the sixth port 406 in fig. 2 to connect the positive electrode of the second input power source in the two input power sources.
In addition, fig. 3 is a partial structure diagram of a power access unit 100 according to an embodiment of the present invention, as shown in fig. 3, because there are two input power sources, in the power access unit 100 in this application, there are two fuses, which are a first fuse 301 and a second fuse 302, respectively, wherein the first fuse 301 is connected to the second port 402 of the power terminal 400, and the second fuse 302 is connected to the sixth port 406 of the power terminal 400. Since the fuse has a protection effect on the circuit, when the current passing through the input power access unit 100 is too large (i.e. exceeds a preset maximum current), the fuse will automatically fuse, thereby disconnecting the input power and protecting other electronic components. For example, the fuse may be a resettable fuse with a predetermined maximum current of 3A.
In an alternative embodiment, the power access unit 100 further comprises: at least two diodes of the first type for controlling the current direction inside the power supply connection unit 100, wherein the current input terminal of each diode of the first type is connected to a fuse.
As shown in fig. 3, there are two diodes of the first type, which are a first diode 303 and a second diode 304, wherein the first diode 303 is connected to the first fuse 301, and the second diode 304 is connected to the second fuse 302. It should be noted that the first type of diode may be a schottky diode for controlling the current flowing inside the power accessing unit 100, for example, in a circuit where the first diode 303 is located, the current can only flow from the current input terminal of the first diode 303 to the current output terminal of the first diode 303, but can not flow from the current output terminal of the first diode 303 to the current input terminal of the first diode 303. The same is true for the second diode 304. By means of the first type of diode, a reverse connection prevention function can be provided for the current access unit.
In an alternative embodiment, the power access unit 100 further comprises: at least two second type diodes for removing static electricity generated inside the power access unit 100, wherein each second type diode is connected to a current input terminal of one first type diode and a negative terminal of the power supply terminal 400.
Optionally, as shown in fig. 3, there are also two second diodes, which are a third diode 305 and a fourth diode 306 respectively. One end of the third diode 305 is connected to the first port 401, and the other end is connected to the current input end of the first diode 303; one end of the fourth diode 306 is connected to the fifth port 405, and the other end is connected to the current input terminal of the second diode 304. It should be noted that the second type of diode may be a bidirectional transient suppression diode, which can suppress and remove static electricity generated inside the power supply connection unit 100. In addition, through the combined use of the fuse, the first type diode and the second type diode, lightning surge can be prevented.
In an alternative embodiment, the power access unit 100 further comprises: and at least two magnetic bead groups for filtering high-frequency noise and spike interference signals on a power line in the power access unit 100, wherein each magnetic bead group is composed of a plurality of magnetic beads, and each magnetic bead group is connected with a second-class diode.
Optionally, in fig. 3, four magnetic beads are shown in total, where two magnetic beads are connected in parallel to form a first magnetic bead group 307, and two other magnetic beads are connected in parallel to form a second magnetic bead group 308. The first bead group 307 is connected to the third diode 305 and the first port 401, and the second bead group 308 is connected to the fourth diode 306 and the fifth port 405.
In an alternative embodiment, the power access unit 100 further comprises: the device comprises at least two capacitor groups and a magnetic bead group, wherein the at least two capacitor groups are used for being combined with the magnetic bead group to jointly filter high-frequency noise and spike interference signals on a power line, each capacitor group is composed of a plurality of capacitors, and each capacitor group is connected with one magnetic bead group.
Optionally, in fig. 3, six capacitors are also shown, wherein three capacitors are connected in parallel to form a first capacitor bank 309, and the other three capacitors are connected in parallel to form a second capacitor bank 310. The first capacitor group 309 is connected to the first bead group 307 and the current output terminal of the first diode 303, and the second capacitor group 310 is connected to the second bead group 308 and the current output terminal of the second diode 304.
It should be noted that the magnetic bead set and the capacitor set can suppress and filter high frequency noise and spike interference signals on the power line in the power access unit 100.
In an alternative embodiment, since the input voltage of each input power source may be different in the multiple input power sources, the voltages generated after the input voltages pass through the fuse, the second type diode, the first type diode, the bead group, and the capacitor group are also different. In fig. 3, the voltage at the current output terminal of the first type diode is the voltage finally output by the circuit shown in fig. 3, and the voltage here can be represented by VIN.
As can be seen from the above analysis, VIN has instability, but in the firewall device, it is finally needed to use a stable voltage to supply power to the motherboard of the firewall device, and therefore, the power access unit 100 in this application further includes: the second chip 500 is connected to the current output terminal of the first diode, and is configured to adjust the voltage output by the first diode to a second voltage, where the second voltage is a working voltage of the alarm unit 300 and the power state detection unit 200.
Optionally, the second chip 500 may be a K78X6-3AR3 chip, wherein fig. 4 is a connection diagram of the second chip 500 according to an embodiment of the present invention, as shown in fig. 4, taking the second chip 500 as the K78X6-3AR3 chip as an example, the chip has 12 pins in total, wherein there are three pins connected to the current output end of the first type diode, so as to obtain the voltage VIN output by the first type diode. Secondly, the K78X6-3AR3 chip is also provided with four pins which are directly grounded; one pin is used to connect two resistors and one capacitor. Three of the remaining four pins of the K78X6-3AR3 chip output a second voltage (corresponding to Vcc in fig. 4), where the second voltage is generated by the K78X6-3AR3 chip after adjustment based on VIN, and the second voltage is the operating voltage of the alarm unit 300 and the power state detection unit 200.
In fig. 4, four capacitors and one resistor are further connected to the three pins for outputting the second voltage. And the last residual pin of the K78X6-3AR3 chip is connected with one of the four capacitors and the resistor, and is connected with a new resistor in parallel on the basis of the resistor.
By connecting the second chip 500, a stable input voltage can be generated for the following alarm unit 300 and power state detection unit 200, thereby ensuring stable operation of the alarm unit 300 and power state detection unit 200.
It should be further noted that, in fig. 4, the capacitors and the resistors connected to the second chip 500 are used to ensure stable operation of the second chip 500, and the number of the capacitors, the number of the resistors, the value of the capacitors, and the value of the resistors are not particularly limited in this application, and a skilled person may adjust these parameters according to actual needs, or simply change the connection relationship thereof.
In an alternative embodiment, the power state detection unit 200 includes: at least two operational amplifiers for adjusting the input voltage of the target input power source to a first voltage, wherein each operational amplifier is connected to a fuse, the target input power source is the input power source correspondingly connected to the fuse, and the first voltage is less than the maximum operating voltage of the first chip 600; the first chip 600 is connected to the at least two operational amplifiers, and is configured to receive a first voltage output by each operational amplifier, determine a power supply state of the at least two input power sources according to the first voltage, and generate a control instruction according to the power supply state.
Optionally, fig. 5 is a structural diagram of an optional power supply abnormality warning device according to an embodiment of the present invention. As shown in fig. 5, fig. 5 shows two operational amplifiers, a first operational amplifier 601 and a second operational amplifier 602, wherein each operational amplifier includes a positive input port, a negative input port and an output port. The operational amplifier may be a U25 LMC6482IM series operational amplifier, which is a CMOS input/output operational amplifier, and the operational amplifier may adjust the received voltage to obtain a subsequent voltage required by the subsequent first chip 600, so as to avoid burning the first chip 600 due to an excessive voltage.
In an alternative embodiment, each operational amplifier may be directly connected to a fuse in the power access unit 100 to directly obtain the input voltage of the input power source to which the fuse is correspondingly connected. However, some operational amplifiers themselves have a maximum operating voltage, and thus, if the input voltage of the input power supply exceeds the maximum operating voltage of the operational amplifier, the operational amplifier may be burned. In order to circumvent such a problem, in practical applications, a resistor may be connected between the fuse and the operational amplifier to divide the voltage of the operational amplifier. As shown in fig. 5, the first operational amplifier 601 and the second operational amplifier 602 are not directly connected to the fuse, but are connected to two resistors and then connected to the fuse through the resistors, respectively. In the case of two input power sources, the input voltage of the first input power source may be represented by PWR1, and the input voltage of the second input power source may be represented by PWR 2. In addition, the positive input ports of the two operational amplifiers are further connected to the second chip 500 for obtaining the second voltage Vcc output by the second chip 500. The negative input ports of the two operational amplifiers are grounded through resistors.
Optionally, as shown in fig. 5, output terminals of two operational amplifiers are respectively connected to the first chip 600, each output terminal corresponds to one input port of the first chip 600, the first chip 600 has 5 ports in total, wherein two ports are respectively connected to the two operational amplifiers, in addition, one port of the remaining three ports is directly grounded, one port is connected to the second chip 500 for obtaining the second voltage Vcc, and the last port is connected to the relay 700. It should be noted that the first chip 600 may be a nand chip, and the main logic performed by the nand chip is that if the signals of the two input ports of the first chip 600 connected to the two operational amplifiers are all high level signals, the first chip 600 will output low level signals, and if at least one of the signals of the two input ports of the first chip 600 connected to the two operational amplifiers is low level signals, the first chip 600 will output high level signals. The signal output by the first chip 600 is a control command for controlling the alarm unit 300.
It should be noted that, when there is no abnormality such as power failure in one input power supply, the signal output by the input power supply is a high level signal, and when there is abnormality such as power failure in one input power supply, the signal output by the input power supply is a low level signal.
Therefore, the first chip 600 is connected to the operational amplifier, so that the power supply state of each input power source can be determined based on the received signal, in other words, whether each input power source is abnormal or not can be determined, and the problem that the abnormal condition of multiple input power sources cannot be detected simultaneously in the prior art is solved.
In an alternative embodiment, the alarm unit 300 receives the output signal of the first chip 600 and generates an alarm signal according to the output signal. Wherein, the alarm unit 300 includes: the relay 700 is connected with the first chip 600 and used for adjusting the connection state among a plurality of ports in the relay 700 according to a control command; and the alarm 800 is connected with a port of the relay 700 and used for generating alarm information.
Alternatively, as shown in fig. 5, the relay 700 may be an 8-pin relay, and the 8 pins are respectively a first pin to an eighth pin, where the eighth pin is connected to one output port of the first chip 600, and acquires an output signal of the first chip 600. The sixth pin and the seventh pin are connected to the alarm 800, and are used to control whether the alarm 800 is in the power-on state. The first pin is connected to the second chip 500 through a resistor, and is used for obtaining a second voltage Vcc.
It should be noted that, if the signal received by the eighth pin is a high level signal, the relay 700 controls the sixth pin and the seventh pin to be in a connection state, at this time, the alarm 800 connected to the sixth pin and the seventh pin is in a power-on state, and the alarm 800 generates alarm information. If the signal received by the eighth pin is a low level signal, the relay 700 controls the sixth pin and the seventh pin to be in a disconnected state, for example, the sixth pin and the fifth pin are connected, at this time, the alarm 800 connected to the sixth pin and the seventh pin is in an unpowered state, and the alarm 800 does not generate alarm information. As can be seen from the above description of the first chip 600, when there is an abnormal input power, the signal received by the eighth pin is a high level signal, so that the relay 700 controls the alarm 800 to generate alarm information, thereby reminding an operation and maintenance worker that the input power fails.
In addition, the alarm 800 in the present application may be a buzzer, an indicator light, and the like, and the correspondingly generated alarm information may be sound information and light information.
In an optional embodiment, the present application further provides a network security device, which includes the above power supply abnormality warning apparatus.
As can be seen from the above analysis, in the power supply abnormality alarm device of the present application, at least two input power supplies can be simultaneously accessed through the power access unit 100, and the power supply state of at least two input power supplies can be detected through the power state detection unit 200, so that the technical defect that abnormality detection cannot be simultaneously performed on multiple input power supplies in the prior art is overcome. In addition, because the power state detection unit 200 can also generate a control instruction according to the power supply state, and the alarm unit 300 connected to the power state detection unit 200 can generate alarm information according to the control instruction, the power abnormality alarm device in the present application also solves the problem that the network security device cannot automatically generate alarm information when the input power fails in the prior art, thereby achieving the effect of improving the response timeliness of the input power abnormality information.
Therefore, the power supply abnormity alarm device achieves the purpose of automatically detecting the power supply state of the multi-channel input power supply, achieves the effect of finding the abnormal input power supply more timely, and solves the technical problem that the abnormal power supply cannot be found out timely due to the fact that the abnormal detection cannot be carried out on the multi-channel input power supply in the prior art.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
In the above embodiments of the present invention, the descriptions of the embodiments have their respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A power supply abnormality warning device characterized by comprising:
the power supply access unit (100) is used for accessing at least two paths of input power supplies;
the power supply state detection unit (200) is connected with the power supply access unit (100) and is used for detecting the power supply states of at least two paths of input power supplies and generating a control instruction according to the power supply states;
and the alarm unit (300) is connected with the power state detection unit (200) and is used for generating alarm information according to the control instruction.
2. The power supply abnormality warning device according to claim 1, characterized in that said power supply connection unit (100) includes:
the power supply terminal (400) is connected with the at least two input power supplies and is used for obtaining electric energy from the at least two input power supplies, wherein the power supply terminal (400) comprises a plurality of negative electrode ports and a plurality of positive electrode ports, each negative electrode port is used for being connected with the negative electrode of one input power supply, and each positive electrode port is used for being connected with the positive electrode of one input power supply;
at least two fuses connected to the positive terminals of the power terminals (400) for disconnecting the power access unit (100) from the input power when the current passing through the power access unit (100) exceeds a preset maximum current, wherein each of the fuses is connected to one of the positive terminals.
3. The power supply abnormality warning device according to claim 2, characterized in that the power supply state detection unit (200) includes:
the operational amplifiers are used for adjusting the input voltage of a target input power supply to be a first voltage, wherein each operational amplifier is connected with one fuse, the target input power supply is the input power supply correspondingly connected with the fuse, and the first voltage is smaller than the maximum working voltage of the first chip (600);
the first chip (600) is connected with the at least two operational amplifiers, and is configured to receive a first voltage output by each operational amplifier, determine power supply states of the at least two input power supplies according to the first voltage, and generate the control instruction according to the power supply states.
4. The power supply abnormality warning device according to claim 3, characterized in that the warning unit (300) includes:
the relay (700) is connected with the first chip (600) and used for adjusting the connection state among a plurality of ports in the relay (700) according to the control instruction;
and the alarm (800) is connected with a port of the relay (700) and is used for generating the alarm information.
5. The power supply abnormality warning device according to claim 2, wherein said power supply access unit (100) further includes:
at least two diodes of a first type for controlling a current direction inside the power supply connection unit (100), wherein a current input terminal of each diode of the first type is connected with one fuse.
6. The power supply abnormality warning device according to claim 5, wherein said power supply connection unit (100) further includes:
at least two second type diodes for removing static electricity generated inside the power access unit (100), wherein each of the second type diodes is connected with a current input end of one of the first type diodes and one of the negative electrode ports of the power supply terminal (400).
7. The power supply abnormality warning device according to claim 6, wherein said power supply connection unit (100) further includes:
the magnetic bead set comprises at least two magnetic bead sets and is used for filtering high-frequency noise and spike interference signals on a power line in the power access unit (100), wherein each magnetic bead set is composed of a plurality of magnetic beads, and each magnetic bead set is connected with one second-class diode.
8. The power supply abnormality warning device according to claim 7, wherein said power supply connection unit (100) further includes:
the device comprises at least two capacitor groups and a magnetic bead group, wherein the at least two capacitor groups are used for being combined with the magnetic bead group to jointly filter high-frequency noise and spike interference signals on the power line, each capacitor group is composed of a plurality of capacitors, and each capacitor group is connected with one magnetic bead group.
9. The power supply abnormality warning device according to claim 7, wherein said power supply access unit (100) further includes:
and the second chip (500) is connected with the current output end of the first diode and is used for adjusting the voltage output by the first diode to a second voltage, wherein the second voltage is the working voltage of the alarm unit (300) and the power state detection unit (200).
10. A network security device characterized in that it comprises a power supply abnormality warning apparatus as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221311083.2U CN217787335U (en) | 2022-05-27 | 2022-05-27 | Power supply abnormity alarm device and network safety equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221311083.2U CN217787335U (en) | 2022-05-27 | 2022-05-27 | Power supply abnormity alarm device and network safety equipment |
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| CN217787335U true CN217787335U (en) | 2022-11-11 |
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| CN202221311083.2U Active CN217787335U (en) | 2022-05-27 | 2022-05-27 | Power supply abnormity alarm device and network safety equipment |
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