CN204679611U - Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system - Google Patents
Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system Download PDFInfo
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- CN204679611U CN204679611U CN201520373577.7U CN201520373577U CN204679611U CN 204679611 U CN204679611 U CN 204679611U CN 201520373577 U CN201520373577 U CN 201520373577U CN 204679611 U CN204679611 U CN 204679611U
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Abstract
The utility model provides Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system, this system comprises: fire fighting equipment power supply monitoring system and standby power supply automatic switching system, standby power supply automatic switching system comprises automatic switching control simulation circuit, change-over switch, emergency generator's unit and system power supply, automatic switching control simulation circuit is connected with fire fighting equipment power supply monitoring system, and automatic switching control simulation circuit is connected with emergency generator's unit and system power supply respectively by change-over switch.The utility model also provides corresponding Novel fire fighting apparatus Power Supply Monitoring logic gates.The utility model can ensure that fire fighting equipment still can normal power supply after fire fighting equipment power supply monitoring system for some reason power-off, having power supply stable, the beneficial effect that fire fighting equipment normally runs can be guaranteed.
Description
Technical field
The utility model relates to Power Supply Monitoring field, particularly, relates to a kind of Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system.
Background technology
Fire fighting equipment power supply monitoring system is collection industrial computer technology, communication, electromagnetism interference, digital sensing technology and industrial field bus are in the intellectualizing system of one, adopt high sensitivity multi-signal sensor, 24 hours real-time automatic detectings, monitoring are carried out to the fire fighting equipment power supply of monitoring.By electric current, voltage, the duty of monitoring fire fighting equipment power supply, thus judge whether fire fighting equipment power supply exists the fault such as interruption of power supply, overvoltage, under-voltage, overcurrent, phase shortage, and carry out the supervisory system of sound and light alarm and record.The duty of fire fighting equipment power supply can centralized displaying on the fire fighting equipment power supply status watch-dog in fire protection control room, process in time after fault alarm, to fix a breakdown hidden danger, make fire fighting equipment power supply be in normal operating conditions all the time, ensure the reliability service of fire fighting equipment.
Existing fire fighting equipment power supply monitoring system is generally made up of equipment such as fire fighting equipment power supply status watch-dog, direct current signal sensor, AC signal sensor, residual current signal transducer, repeaters.But current fire fighting equipment power supply monitoring system only has the functions such as display, warning, logout and fault handling.And once fire fighting equipment power supply monitoring system dead electricity, then the whole power-off of whole fire fighting equipment system, system cannot normally be run.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system.
According to an aspect of the present utility model, a kind of Novel fire fighting apparatus Power Supply Monitoring logic gates is provided, comprise: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the output terminal of first order not circuit and being connected with door of second level NAND gate circuit, being connected with the output terminal of door input end with first order not circuit of second level NAND gate circuit, output terminal is connected with the not gate input end of second level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit and being connected with door input end of third level NAND gate circuit, being connected with the non-gate output terminal of second level NAND gate circuit with door input end of third level NAND gate circuit, output terminal is connected with the not gate input end of third level NAND gate circuit, the output terminal of the not gate of third level NAND gate circuit is connected with fourth stage AND circuit, the input end of fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
According to another aspect of this law, a kind of Novel fire fighting apparatus power supply monitoring system is provided, comprise: fire fighting equipment power supply monitoring system and standby power supply automatic switching system, standby power supply automatic switching system comprises automatic switching control simulation circuit, change-over switch, emergency generator's unit and system power supply, automatic switching control simulation circuit is connected with fire fighting equipment power supply monitoring system, and automatic switching control simulation circuit is connected with emergency generator's unit and system power supply respectively by change-over switch, wherein:
Automatic switching control simulation circuit comprises: voltage detection mimic channel, logic gates and control and output mimic channel, the input end of voltage detection mimic channel is connected with fire fighting equipment power supply monitoring system, emergency generator's unit and system power supply respectively, the output terminal of voltage detection mimic channel is connected to the input end of logic gates, the output terminal of logic gates is connected to and controls and export mimic channel, and the output terminal of control and output mimic channel is connected with change-over switch; Further,
Logic gates comprises: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the input end of first order not circuit is connected with fire fighting equipment power supply monitoring system, output terminal is connected with door input end with second level NAND gate circuit, being connected with the output terminal of door import and export end and first order not circuit and system power supply of second level NAND gate circuit, not gate input end and the tangential switch of output terminal and second level NAND gate circuit are connected, the non-gate output terminal of second level NAND gate circuit and being connected with door input end of third level NAND gate circuit, being connected with the non-gate output terminal of door input end and second level NAND gate circuit and emergency generator's unit of third level NAND gate circuit, not gate input end and the tangential switch of output terminal and third level NAND gate circuit are connected, the non-gate output terminal of third level NAND gate circuit is connected with fourth stage AND circuit, the input end of fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
Preferably, automatic switching control simulation circuit also comprises display simulation circuit, and display simulation circuit is respectively with voltage detection mimic channel, logic gates and control and export mimic channel and be connected.
Preferably, change-over switch is three-phase change-over switch.
Fire fighting equipment Power Supply Monitoring system in the utility model is conventional fire fighting equipment power supply monitoring system, when fire fighting equipment power supply monitoring system for some reason dead electricity time, standby power supply automatic switching system by alternate power autocast, to ensure the normal power supply of fire fighting equipment.Power supply automatic switching system of the present utility model has two-way back-up source, as long as wherein arbitrary Lu You electricity, just can ensure the normal power supply of fire fighting equipment.The two-way back-up source of standby power supply automatic switching system can be respectively house generator and system power supply, first throws system power supply during general dead electricity, if system power supply throws emergency generator's unit again without electricity, starts automatic generation unit and powers.
Fire fighting equipment power supply monitoring system conventional in the utility model for some reason dead electricity time, standby power supply automatic switching system, by alternate power autocast, to ensure the normal power supply of fire fighting equipment power supply, guarantees that fire fighting equipment system is normally run.Further, standby power supply automatic switching system has two-way back-up source, as long as wherein arbitrary Lu You electricity, just can ensure the normal power supply of fire fighting equipment power supply, and power supply is stable.Therefore, compared with prior art, the utility model can ensure fire fighting equipment power supply monitoring system, and after power-off for some reason, fire fighting equipment still can normal power supply, having power supply stable, the beneficial effect that fire fighting equipment normally runs can be guaranteed.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 is the structural representation of the utility model Novel fire fighting apparatus Power Supply Monitoring logic gates;
Fig. 2 is the structure principle chart of the utility model fire fighting equipment power supply monitoring system;
Fig. 3 is the structure principle chart of automatic switching control simulation circuit DN;
Fig. 4 is the workflow schematic diagram of standby power supply automatic switching system.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
Refer to Fig. 1, a kind of Novel fire fighting apparatus Power Supply Monitoring logic gates, comprise: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the output terminal of first order not circuit and being connected with door of second level NAND gate circuit, being connected with the output terminal of door input end with first order not circuit of second level NAND gate circuit, output terminal is connected with the not gate input end of second level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit and being connected with door input end of third level NAND gate circuit, being connected with the non-gate output terminal of second level NAND gate circuit with door input end of third level NAND gate circuit, output terminal is connected with the not gate input end of third level NAND gate circuit, the output terminal of the not gate of third level NAND gate circuit is connected with fourth stage AND circuit, the input end of fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
Based on above-mentioned Novel fire fighting apparatus Power Supply Monitoring logic gates, the utility model also provides a kind of Novel fire fighting apparatus power supply monitoring system, refer to Fig. 2, a kind of Novel fire fighting apparatus power supply monitoring system, comprise: fire fighting equipment power supply monitoring system and standby power supply automatic switching system ATS, standby power supply automatic switching system ATS comprises automatic switching control simulation circuit DN, change-over switch K, emergency generator's unit Vh and system power supply Vg, automatic switching control simulation circuit DN is connected with fire fighting equipment power supply monitoring system, and automatic switching control simulation circuit DN is connected with emergency generator's unit Vh and system power supply Vg respectively by change-over switch K.
Particularly, change-over switch is three-phase change-over switch, and change-over switch K has three kinds of states: tangential Vh, tangential Vg, centre position is neutral.
Whether automatic switching control simulation circuit DN has electricity in order to detect fire fighting equipment power supply monitoring system in real time, and whether emergency generator's unit Vh and system power supply Vg has electricity, and controls the tangential of tangential K switch according to testing result.As shown in Figure 3, automatic switching control simulation circuit DN comprises voltage detection mimic channel, logic gates, control and exports mimic channel and display simulation circuit, the input end of voltage detection mimic channel is connected with fire fighting equipment power supply monitoring system, emergency generator's unit and system power supply respectively, in order to measure the voltage of fire fighting equipment power supply monitoring system, emergency generator's unit Vh and system power supply Vg, the output terminal of voltage detection mimic channel is connected to the input end of logic gates, logic gates is in order to judge fire fighting equipment power supply monitoring system according to the voltage measuring value received, whether emergency generator's unit Vh and system power supply Vg has electricity, and export to according to the tangential instruction that judged result obtains tangential K switch and control and export mimic channel, the output terminal of logic gates is connected to and controls and export mimic channel, the output terminal of control and output mimic channel is connected with change-over switch K, control and export mimic channel to control the tangential of tangential K switch according to the tangential instruction of the tangential K switch received.Display simulation circuit is respectively with voltage detection mimic channel, logic gates and control and export mimic channel and be connected, in order to show the tangential of current tangential K switch.
Particularly, as shown in Figure 1, logic gates comprises: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the input end of first order not circuit is connected with fire fighting equipment power supply monitoring system, output terminal is connected with door input end with second level NAND gate circuit, being connected with the output terminal of door import and export end and first order not circuit and system power supply of second level NAND gate circuit, not gate input end and the tangential switch of output terminal and second level NAND gate circuit are connected, the non-gate output terminal of second level NAND gate circuit and being connected with door input end of third level NAND gate circuit, being connected with the non-gate output terminal of door input end and second level NAND gate circuit and emergency generator's unit of third level NAND gate circuit, not gate input end and the tangential switch of output terminal and third level NAND gate circuit are connected, the non-gate output terminal of third level NAND gate circuit is connected with fourth stage AND circuit, the input end of fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
Standby power supply automatic switching system ATS of the present utility model not only needs the two-way incoming power detecting emergency generator's unit Vh and system power supply Vg in real time, and whether also need to detect fire fighting equipment power supply monitoring system in real time has electricity.As shown in Figure 2, when detection fire fighting equipment power supply monitoring system power-off in real time, whether automatic switching control simulation circuit DN first detection system power supply Vg has electricity, as system power supply Vg has electricity, then tangential K switch is switched to system power supply Vg by automatic switching control simulation circuit DN, system power supply Vg is put into fire fighting equipment automatically, if system power supply Vg is without electricity, emergency generator's unit Vh has electricity, then tangential K switch is switched to emergency generator's unit Vh by automatic switching control simulation circuit DN, emergency generator's unit Vh is put into fire fighting equipment automatically, as detected emergency generator's unit Vh also without electricity, then automatic switching control simulation circuit DN starts house generator immediately, and detect emergency generator's unit Vh voltage in real time, when automatic switching control simulation circuit DN detects that emergency generator's unit Vh voltage is normal, immediately tangential K switch is switched to emergency generator's unit Vh, drop into emergency generator's unit Vh to fire fighting equipment, to ensure the normal power supply of fire fighting equipment.
The utility model engages with the standby power supply automatic switching system ATS improved on existing fire fighting equipment power supply monitoring system basis, when fire fighting equipment power supply monitoring system dead electricity, one road power supply (emergency generator's unit Vh or system power supply Vg) can be thrown by standby power supply automatic switching system ATS immediately, namely two back-up sources are added: emergency generator's unit Vh and system power supply Vg), thus more ensure the reliability of fire fighting equipment Power supply.
As shown in Figure 4, specific works process of the present utility model is as follows:
When fire fighting equipment power supply monitoring system has electricity, change-over switch K mediates as neutral, when the automatic switching control simulation circuit DN of standby power supply automatic switching system ATS detects fire fighting equipment power supply monitoring system dead electricity, immediately by emergency generator's unit Vh or system power supply Vg (specifically depending on emergency generator's unit Vh and system power supply Vg at that time, which has electricity, just which is thrown) drop into, power to fire fighting equipment, to ensure that fire fighting equipment can normally work.Generally first throw system power supply Vg, if system power supply Vg is without electricity, then detect emergency generator's unit Vh, as emergency generator's unit Vh is normal, throw emergency generator's unit Vh immediately to fire fighting equipment, as emergency generator's unit Vh then starts house generator immediately without electricity, after house generator starts, after automatic switching control simulation circuit DN detects that emergency generator's unit Vh voltage is normal, drop into emergency generator's unit Vh immediately to fire fighting equipment, ensure that fire fighting equipment system is normally run.
The utility model substantially increases the power supply reliability of fire-fighting system, can ensure that fire fighting equipment system still can normal power supply after power-off for some reason, having power supply stable, the beneficial effect that fire fighting equipment system is normally run can be guaranteed.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (4)
1. a Novel fire fighting apparatus Power Supply Monitoring logic gates, it is characterized in that, comprise: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the output terminal of described first order not circuit and being connected with door of described second level NAND gate circuit, being connected with the output terminal of door input end with described first order not circuit of described second level NAND gate circuit, output terminal is connected with the not gate input end of second level NAND gate circuit, the non-gate output terminal of described second level NAND gate circuit and being connected with door input end of described third level NAND gate circuit, being connected with the non-gate output terminal of door input end with described second level NAND gate circuit of described third level NAND gate circuit, output terminal is connected with the not gate input end of third level NAND gate circuit, the output terminal of the not gate of third level NAND gate circuit is connected with described fourth stage AND circuit, the input end of described fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
2. the Novel fire fighting apparatus power supply monitoring system based on Novel fire fighting apparatus Power Supply Monitoring logic gates according to claim 1, it is characterized in that, comprise: fire fighting equipment power supply monitoring system and standby power supply automatic switching system, described standby power supply automatic switching system comprises automatic switching control simulation circuit, change-over switch, emergency generator's unit and system power supply, described automatic switching control simulation circuit is connected with described fire fighting equipment power supply monitoring system, and described automatic switching control simulation circuit is connected with described emergency generator's unit and system power supply respectively by described change-over switch, wherein:
Described automatic switching control simulation circuit comprises: voltage detection mimic channel, logic gates and control and output mimic channel, the input end of described voltage detection mimic channel is connected with described fire fighting equipment power supply monitoring system, emergency generator's unit and system power supply respectively, the output terminal of described voltage detection mimic channel is connected to the input end of described logic gates, the output terminal of described logic gates is connected to described control and exports mimic channel, and the output terminal of described control and output mimic channel is connected with described change-over switch; Further,
Described logic gates comprises: first order not circuit, second level NAND gate circuit, third level NAND gate circuit and fourth stage AND circuit, the input end of described first order not circuit is connected with described fire fighting equipment power supply monitoring system, output terminal is connected with door input end with described second level NAND gate circuit, being connected with the output terminal of door import and export end and described first order not circuit and system power supply of described second level NAND gate circuit, not gate input end and the tangential switch of output terminal and second level NAND gate circuit are connected, the non-gate output terminal of described second level NAND gate circuit and being connected with door input end of described third level NAND gate circuit, being connected with the non-gate output terminal of door input end and described second level NAND gate circuit and emergency generator's unit of described third level NAND gate circuit, not gate input end and the tangential switch of output terminal and third level NAND gate circuit are connected, the non-gate output terminal of third level NAND gate circuit is connected with described fourth stage AND circuit, the input end of fourth stage AND circuit respectively with the output terminal of the not gate of third level NAND gate circuit, the non-gate output terminal of second level NAND gate circuit, and the output terminal of first order not circuit connects.
3. Novel fire fighting apparatus power supply monitoring system according to claim 2, it is characterized in that, described automatic switching control simulation circuit also comprises display simulation circuit, and described display simulation circuit is respectively with described voltage detection mimic channel, logic gates and control and export mimic channel and be connected.
4. Novel fire fighting apparatus power supply monitoring system according to claim 2, is characterized in that, described change-over switch is three-phase change-over switch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520373577.7U CN204679611U (en) | 2015-06-02 | 2015-06-02 | Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system |
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| CN201520373577.7U CN204679611U (en) | 2015-06-02 | 2015-06-02 | Novel fire fighting apparatus Power Supply Monitoring logic gates and power supply monitoring system |
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| CN204679611U true CN204679611U (en) | 2015-09-30 |
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