CN115633427A - Emergency lighting centralized power supply control system - Google Patents
Emergency lighting centralized power supply control system Download PDFInfo
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
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- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
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- H05B47/105—Controlling the light source in response to determined parameters
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
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Abstract
The invention relates to the technical field of emergency lighting and light intensity control, and provides an emergency lighting centralized power supply control system which comprises a master control module, a plurality of branch control modules and a self-checking module, wherein the master control module is connected with the branch control modules; the main control module is connected with a first communication module and an acquisition module, the acquisition module is used for detecting standby power supply data, the main control module is connected with each branch control module through the first communication module, and emergency lighting is controlled according to a preset scheme; the sub-control module is provided with a second communication module and an area detection module, the sub-control module is used for controlling emergency lighting lamps in an area, the area detection module is used for detecting area lighting data, and the second communication module is used for performing data interaction with the first communication module; the self-checking module is connected with the master control module and used for performing system diagnosis according to the standby power supply data and the regional lighting data and providing a diagnosis result. The invention can realize flexible regional control and system self-check of the emergency lighting system, improve the intelligent degree and facilitate the system maintenance and management.
Description
Technical Field
The invention relates to the technical field of emergency lighting and light intensity control, in particular to an emergency lighting centralized power supply control system.
Background
The emergency lighting is a general name of lamps for emergency lighting, and the lamps for emergency lighting are of portable emergency lamps, fire emergency lamps, energy-saving emergency lamps, supply emergency lamps, underwater emergency lamps, rechargeable emergency lamps, solar emergency lamps, multifunctional emergency lamps and the like, wherein the fire emergency lighting is lighting equipment which is used for evacuating trapped people or unfolding fire-extinguishing rescue actions after a normal lighting power supply is cut off when a fire disaster occurs.
There are two types of fire emergency lighting: a normal power supply of an emergency lamp is connected with a common lighting power supply loop, a storage battery of the emergency lamp is charged at ordinary times without lighting, and only when the normal power supply is cut off, a standby power supply (the storage battery) automatically supplies power; the emergency lamp has the advantages that each lamp of the emergency lamp is internally provided with electronic components such as a voltage transformation circuit, a voltage stabilization circuit, a charging circuit, an inversion circuit, a storage battery and the like to form a control circuit, and the battery needs to be charged and discharged when the emergency lamp is used, overhauled and has faults; the self-contained power supply independent control type emergency lighting has no special requirement on a power supply line because each emergency lighting is internally provided with a standby power supply (a storage battery), and the standby power supply cannot be influenced when the power supply line fails; when the emergency lamp breaks down, the lamp is generally only influenced, and the influence on the whole system is small. The other type is a centralized power supply control type, an independent power supply (a storage battery) is not arranged in emergency lighting, and when a normal lighting power supply fails, a centralized power supply system supplies power; the emergency lighting system in the form can save complex electronic circuits in all lamps, the emergency lighting lamps are not greatly different from common lamps, and the centralized power supply system can be arranged in a special room; compared with the independent control type emergency lighting with the power supply, the centralized control type emergency lighting with the centralized power supply has the advantages of convenience for centralized management, user self-check, fire control supervision and inspection, prolonging of the service life of lamps, improvement of emergency evacuation efficiency and the like, and is good in system reliability, long in service life, convenient to maintain and manage and low in system price. However, in the centralized control type emergency lighting of the centralized power supply, because each emergency lighting is not provided with a standby power supply (a storage battery), if a power supply line fails, the normal operation of an emergency lighting system can be directly influenced, and therefore, special fireproof requirements are applied to the power supply line. When the emergency illuminating lamp is selected, the emergency illuminating system can be reasonably selected according to specific conditions, generally, new projects or projects with fire control rooms can be uniformly wired in the construction process, and centralized power supply centralized control type emergency illumination is selected; the independent control type emergency lighting with the power supply is more adopted for small-sized places, later-stage rectification or secondary decoration transformation projects.
At present, the intelligent degree of centralized control type emergency lighting of a centralized power supply is not high, the flexibility is poor, and emergency lamps connected with the same line cannot be controlled differently; the system has insufficient self-checking, is inconvenient to maintain and manage, and has adverse effects on emergency lighting.
Disclosure of Invention
In order to solve the technical problem, the invention provides an emergency lighting centralized power supply control system which comprises a master control module, a plurality of branch control modules and a self-checking module;
the main control module is connected with a first communication module and an acquisition module, the acquisition module is used for detecting standby power supply data, and the main control module is connected with each sub-control module through the first communication module and controls emergency lighting according to a preset scheme;
the sub-control module is provided with a second communication module and an area detection module, the sub-control module is used for controlling emergency lighting lamps in an area, the area detection module is used for detecting area lighting data, and the second communication module is used for performing data interaction with the first communication module;
the self-checking module is connected with the master control module and used for performing system diagnosis according to the standby power supply data and the regional lighting data and providing a diagnosis result.
Optionally, the master control module is provided with a current-limiting voltage-stabilizing circuit for controlling the electrical output of the standby power supply, and the current-limiting voltage-stabilizing circuit comprises a current-limiting module, a field-effect transistor Q1, a bandgap reference voltage module, an amplifier U1, an error amplifier U2, a variable resistor R1, a variable resistor R2 and a variable resistor R3;
the input end of the current limiting module is connected with a standby power supply, the output end of the current limiting module is connected with the source electrode of the field effect transistor Q1, and the drain electrode of the field effect transistor Q1 is connected with the battery module;
the control end of the current limiting module is connected with a pin 4 of an error amplifier U2, an input pin 1 of the error amplifier U2 is connected with an output pin 4 of the amplifier U1 through a variable resistor R1, a pin 3 of the error amplifier U2 is respectively connected with a band-gap reference voltage module and a pin 3 of the amplifier U1, and an output pin 5 of the error amplifier U2 is connected with a grid electrode of a field effect tube Q1;
an input pin 1 of an amplifier U1 is connected with a band-gap reference voltage module, an input pin 2 of the amplifier U1 is respectively connected with one end of a variable resistor R2 and one end of a variable resistor R3, the other end of the variable resistor R2 is connected with an input pin 1 of an error amplifier U2, and the other end of the variable resistor R3 is grounded;
an input pin 2 of the error amplifier U2 is connected with a drain electrode of the field effect transistor Q1 to serve as a power supply output end.
Optionally, the master control module is configured with an overvoltage protection sub-module, the overvoltage protection sub-module includes an overvoltage protection circuit, and the overvoltage protection circuit includes a resistor R4, a resistor R5, a resistor R6, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, a capacitor C2, and a transformer;
the mutual inductor is used for voltage detection, the mutual inductor is connected with one end of a resistor R4, and the other end of the resistor R4 is respectively connected with the cathode of the diode D1 and the anode of the capacitor C1; the cathode of the capacitor C1 is respectively connected with the anode of the diode D3 and the cathode of the diode D4, the cathode of the diode D3 is respectively connected with one end of the resistor R6 and the anode of the capacitor C2, and the anode of the diode D4 and the cathode of the capacitor C2 are grounded; the other end of the resistor R6 is respectively connected with the anode of the diode D1 and the anode of the diode D2, the cathode of the diode D2 is connected with one end of the resistor R5, and the other end of the resistor R5 transmits signals to the master control module.
Optionally, the sub-control module is configured with an emergency lighting lamp control circuit, and the emergency lighting lamp control circuit includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D5, a triode Q2, a triode Q3, a field effect tube assembly M1, and a field effect tube assembly M2; the field effect tube assembly M1 and the field effect tube assembly M2 are both field effect tubes connected with diodes in parallel;
a power supply V + is introduced into a drain electrode of the field effect tube component M1 and a drain electrode of the field effect tube component M2, a grid electrode of the field effect tube component M1 is connected with one end of a resistor R9, a grid electrode of the field effect tube component M2 is connected with one end of a resistor R10, and the other end of the resistor R9 is connected with the other end of the resistor R10 and connected into a sub-control module;
the source electrode of field effect tube subassembly M1 respectively with field effect tube subassembly M2's source electrode, diode D5's negative pole, resistance R7's one end, triode Q3's projecting pole and emergency lighting lamps and lanterns are connected, triode Q3's base is connected with resistance R8's one end, resistance R8's the other end is connected with resistance R7's the other end and triode Q2's projecting pole respectively, diode D5's positive pole and triode Q2's collecting electrode ground connection respectively, triode Q2's base and triode Q3's collecting electrode are connected and are inserted and divide the accuse module.
Optionally, the first communication module is configured with a filter circuit, the filter circuit includes a filter module, a level conversion module, a switch K1 and a switch K2, and the filter module includes a low-band filter module and a high-band filter module;
the first communication module is switched by a selector switch K1 and respectively input into the low-frequency band filtering module or the high-frequency band filtering module; the master control module is respectively connected with the output ends of the low-frequency band filtering module and the high-frequency band filtering module through a selector switch K2;
the low level pin of the level conversion module is respectively connected with the low level pins of the filtering module, the selector switch K1 and the selector switch K2; and a high level pin of the level conversion module is respectively connected with high level pins of the filtering module, the selector switch K1 and the selector switch K2.
Optionally, the second communication module is configured with an amplifying circuit; the amplifying circuit comprises a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4 and an amplifier U3;
one end of the resistor R11 is a signal end, the other end of the resistor R11 is respectively connected with the anode of the capacitor C3 and an input pin 1 of the amplifier U3, and an input pin 2 of the amplifier U3 is connected with a power supply; the negative electrode of the capacitor C3 is connected with one end of the resistor R12, the other end of the resistor R12 is connected with an output pin of the amplifier U3 and one end of the resistor R13, the other end of the resistor R13 is connected with the positive electrode of the capacitor C4, the negative electrode of the capacitor C4 is grounded, and the other end of the resistor R13 is connected with the second communication module.
Optionally, the area detection module is provided with a human body sensor, and the human body sensor is used for detecting whether people reside in the area; if no personnel stay, the emergency lighting lamp is not started;
the human body sensor adopts an infrared imaging recognition sensor and/or a sound recognition sensor.
Optionally, the first communication module is configured with a second amplifying circuit, where the second amplifying circuit includes a differential amplifying module U4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a resistor R14, a resistor R15, a resistor R16, and an operational amplifier U5;
the pin 3 and the pin 2 of the differential amplification module U4 are input ends; the pin 1 of the differential amplification module U4 is grounded; a pin 4 of the differential amplification module U4 is connected with a cathode of a capacitor C5 and is connected with-15V voltage, and an anode of the capacitor C5 is grounded; a pin 7 of the differential amplification module U4 is connected with the anode of the capacitor C6 and is connected with +15V voltage, the cathode of the capacitor C6 is grounded, and a pin 8 of the differential amplification module U4 is overhead; a pin 5 and a pin 6 of the differential amplification module U4 are connected with an anode of a capacitor C7, a cathode of the capacitor C7 is connected with one end of a resistor R14 and an input end pin 3 of the operational amplifier U5, and the other end of the resistor R14 is grounded;
the input end pin 2 of the operational amplifier U5 is connected with one end of a resistor R15 and one end of a resistor R16, and the other end of the resistor R15 is grounded; a pin 7 of the operational amplifier U5 is connected with the anode of a capacitor C8 and is connected with +15V voltage, and the cathode of the capacitor C8 is grounded; the pin 4 of the operational amplifier U5 is connected with the cathode of the capacitor C9 and connected with-15V voltage, and the anode of the capacitor C9 is grounded; and the pin 6 of the operational amplifier U5 is connected with the other end of the resistor R16 and serves as an output end.
Optionally, the master control module is connected with the remote terminal by adopting the internet of things, and accesses the remote terminal searching software; when the master control module finds out a software fault through self-checking, software repair is carried out through a remote terminal; and if the remote terminal is found to be provided with the upgrading software through regular access, automatically updating the software.
Optionally, the master control module is connected with a high-definition camera and a memory, and the high-definition camera is used for regularly shooting a color image of the standby power cable; the memory stores aging color charts of the scrapped cables;
the master control module periodically adopts an image comparison mode to evaluate the aging degree of the standby power cable through image processing and identification; and if the evaluation result is that the standby power cable is seriously aged, warning information is sent.
According to the emergency lighting centralized power supply control system, the master control module and the plurality of sub-control modules are arranged, the sub-control modules are installed in different areas, and the master control module and the sub-control modules are in data connection, so that the regional flexible control of the emergency lighting system is realized, for example, regional division can be performed according to fire partitions, and a plurality of sub-control modules can be arranged in the same fire partition; the method comprises the steps that an acquisition module is arranged to detect standby power data, wherein the standby power data can comprise the voltage, the power, the temperature and the like of power supply equipment, a sub-control module adopts a region detection module to detect region illumination data, and the region illumination data can comprise region illuminance, power consumption of each emergency illumination lamp and the like; by setting the self-checking module to carry out system diagnosis according to the standby power supply data and the regional lighting data and output a diagnosis result, the system self-checking is realized, the intelligent degree of centralized control is improved, and the system maintenance and management are facilitated.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of an emergency lighting centralized power control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a current-limiting voltage stabilizing circuit employed in an embodiment of the emergency lighting centralized power control system of the present invention;
FIG. 3 is a schematic diagram of an over-voltage protection circuit employed in an embodiment of the emergency lighting centralized power control system of the present invention;
FIG. 4 is a schematic diagram of an emergency lighting lamp control circuit adopted by a sub-control module of an embodiment of the emergency lighting centralized power control system of the present invention;
fig. 5 is a schematic diagram of a filter circuit of a first communication module configuration employed in an embodiment of the emergency lighting centralized power control system of the present invention;
FIG. 6 is a schematic diagram of an amplifying circuit of a second communication module configuration employed in an embodiment of the emergency lighting centralized power control system of the present invention;
fig. 7 is a schematic diagram of a second amplifying circuit configured on a first communication module according to an embodiment of the emergency lighting centralized power control system of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
As shown in fig. 1, an embodiment of the present invention provides an emergency lighting centralized power control system, which includes a main control module 10, a plurality of sub-control modules 50, and a self-test module 30;
the master control module 10 is connected with a first communication module 20 and an acquisition module 40, the acquisition module 40 is used for detecting standby power supply data, the master control module 10 is connected with each sub-control module 50 through the first communication module 20, and emergency lighting is controlled according to a preset scheme;
the sub-control module 50 is configured with a second communication module 60 and an area detection module 70, the sub-control module 50 is used for controlling emergency lighting in an area, the area detection module 70 is used for detecting area lighting data, and the second communication module 60 is used for performing data interaction with the first communication module 20;
the self-checking module 30 is connected to the master control module 10, and the self-checking module 30 is configured to perform system diagnosis according to the standby power data and the regional lighting data, and provide a diagnosis result.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the master control module and the plurality of sub-control modules are arranged, the sub-control modules are installed in different areas, the master control module and the sub-control modules are in data connection, so that the flexible control of the emergency lighting system in different areas is realized, for example, the area division can be carried out according to fire partitions, and the plurality of sub-control modules can be arranged in the same fire partition; the method comprises the steps that an acquisition module is arranged to detect standby power data, wherein the standby power data can comprise the voltage, the power, the temperature and the like of power supply equipment, a sub-control module adopts a region detection module to detect region illumination data, and the region illumination data can comprise region illuminance, power consumption of each emergency illumination lamp and the like; by setting the self-checking module, system diagnosis is carried out according to the standby power supply data and the regional lighting data, and a diagnosis result is output, so that system self-checking is realized, the intelligent degree of centralized control is improved, and system maintenance and management are facilitated.
In one embodiment, as shown in fig. 2, the general control module sets a current-limiting voltage-stabilizing circuit to control the electrical output of the standby power supply, where the current-limiting voltage-stabilizing circuit includes a current-limiting module, a field effect transistor Q1, a bandgap reference voltage module, an amplifier U1, an error amplifier U2, a variable resistor R1, a variable resistor R2, and a variable resistor R3;
the input end of the current limiting module is connected with a standby power supply, the output end of the current limiting module is connected with the source electrode of the field effect transistor Q1, and the drain electrode of the field effect transistor Q1 is connected with the battery module;
the control end of the current limiting module is connected with a pin 4 of an error amplifier U2, an input pin 1 of the error amplifier U2 is connected with an output pin 4 of the amplifier U1 through a variable resistor R1, a pin 3 of the error amplifier U2 is respectively connected with a band-gap reference voltage module and a pin 3 of the amplifier U1, and an output pin 5 of the error amplifier U2 is connected with a grid electrode of a field effect tube Q1;
an input pin 1 of an amplifier U1 is connected with a band-gap reference voltage module, an input pin 2 of the amplifier U1 is respectively connected with one end of a variable resistor R2 and one end of a variable resistor R3, the other end of the variable resistor R2 is connected with an input pin 1 of an error amplifier U2, and the other end of the variable resistor R3 is grounded;
an input pin 2 of the error amplifier U2 is connected with a drain electrode of the field effect transistor Q1 to serve as a power supply output end.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, a current-limiting voltage stabilizing circuit is arranged, a reference voltage provided by a band-gap reference voltage module is used as a reference, the reference voltage is processed by an amplifier U1, a plurality of variable resistors and an error amplifier U2 and then acts on the current-limiting module and a field effect tube Q1, and the power supply output voltage of the standby power supply is subjected to voltage stabilization control; the current limiting module is used for limiting the current to the source electrode of the field effect transistor Q1, so that the voltage output by power supply is stable, the current is controllable, the risk is reduced, and the service life of the device is prolonged; the current-limiting voltage stabilizing circuit has the advantages of high reaction speed, excellent transient response and capability of realizing stable work under ultralow differential pressure by matching with the capacitor.
In one embodiment, as shown in fig. 3, the general control module is configured with an overvoltage protection sub-module, the overvoltage protection sub-module includes an overvoltage protection circuit, and the overvoltage protection circuit includes a resistor R4, a resistor R5, a resistor R6, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, a capacitor C2, and a transformer;
the mutual inductor is used for voltage detection, the mutual inductor is connected with one end of a resistor R4, and the other end of the resistor R4 is respectively connected with the cathode of the diode D1 and the anode of the capacitor C1; the cathode of the capacitor C1 is respectively connected with the anode of the diode D3 and the cathode of the diode D4, the cathode of the diode D3 is respectively connected with one end of the resistor R6 and the anode of the capacitor C2, and the anode of the diode D4 and the cathode of the capacitor C2 are grounded; the other end of the resistor R6 is respectively connected with the anode of the diode D1 and the anode of the diode D2, the cathode of the diode D2 is connected with one end of the resistor R5, and the other end of the resistor R5 transmits signals to the master control module.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is through setting up the overvoltage protection submodule piece, adopts above-mentioned overvoltage protection circuit to carry out voltage protection, and voltage protection reaction is quick, can strengthen the security of controlling means, reduces the fault rate of system, improves the life of system.
In one embodiment, as shown in fig. 4, the sub-control module is configured with an emergency lighting lamp control circuit, which includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D5, a transistor Q2, a transistor Q3, a field effect tube assembly M1, and a field effect tube assembly M2; the field effect tube assembly M1 and the field effect tube assembly M2 are field effect tubes connected with diodes in parallel;
a power supply V + is introduced into a drain electrode of the field effect tube component M1 and a drain electrode of the field effect tube component M2, a grid electrode of the field effect tube component M1 is connected with one end of a resistor R9, a grid electrode of the field effect tube component M2 is connected with one end of a resistor R10, and the other end of the resistor R9 is connected with the other end of the resistor R10 and connected into a sub-control module;
the source electrode of field effect tube subassembly M1 respectively with field effect tube subassembly M2's source electrode, diode D5's negative pole, resistance R7's one end, triode Q3's projecting pole and emergency lighting lamps and lanterns are connected, triode Q3's base is connected with resistance R8's one end, resistance R8's the other end is connected with resistance R7's the other end and triode Q2's projecting pole respectively, diode D5's positive pole and triode Q2's collecting electrode ground connection respectively, triode Q2's base and triode Q3's collecting electrode are connected and are inserted and divide the accuse module.
The working principle and the beneficial effects of the technical scheme are as follows: the single control of each emergency lighting lamp can be realized through the emergency lighting lamp control circuit, so that each emergency lighting lamp in the same line can be controlled differently, for example, part of emergency lighting lamps can be turned on to illuminate while the other part is not turned on the same line as required, and the flexibility and the energy conservation of system control are improved.
In one embodiment, as shown in fig. 5, the first communication module is configured with a filter circuit, the filter circuit includes a filter module, a level shift module, a switch K1 and a switch K2, and the filter module includes a low-band filter module and a high-band filter module;
the first communication module is switched by a selector switch K1 and respectively input into the low-frequency band filtering module or the high-frequency band filtering module; the master control module is respectively connected with the output ends of the low-frequency band filtering module and the high-frequency band filtering module through a selector switch K2;
a low level pin of the level conversion module is respectively connected with low level pins of the filtering module, the selector switch K1 and the selector switch K2; and a high-level pin of the level conversion module is respectively connected with high-level pins of the filtering module, the selector switch K1 and the selector switch K2.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the filter is configured with a filter circuit, under the control of low level and high level conversion performed by a level conversion module, a detection signal received by a first communication module is switched to enter a low-frequency band filter module or a high-frequency band filter module through a selector switch K1 for processing, the connection switching with the first communication module is realized through the matching action of a selector switch K2, and a main control module receives the detection signal subjected to filtering processing by distinguishing the low-frequency band from the high-frequency band; the filter circuit of the scheme can tune frequency bands, can perform different filtering processing according to the difference of low frequency bands and high frequency bands, better achieves noise filtering, can effectively eliminate signal interference, and improves detection precision.
In one embodiment, as shown in fig. 6, the second communication module is configured with an amplification circuit; the amplifying circuit comprises a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4 and an amplifier U3;
one end of the resistor R11 is a signal end, the other end of the resistor R11 is respectively connected with the anode of the capacitor C3 and an input pin 1 of the amplifier U3, and an input pin 2 of the amplifier U3 is connected with a power supply; the negative electrode of the capacitor C3 is connected with one end of the resistor R12, the other end of the resistor R12 is connected with an output pin of the amplifier U3 and one end of the resistor R13, the other end of the resistor R13 is connected with the positive electrode of the capacitor C4, the negative electrode of the capacitor C4 is grounded, and the other end of the resistor R13 is connected with the second communication module.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the amplifying circuit is configured for the second communication module, and the signal to be output is amplified and then transmitted by the second communication module, so that the signal transmission distance can be increased, the anti-interference capability in the signal transmission process can be improved, the first communication module at the receiving end can receive a clear signal, the identifiability of the signal is enhanced, and the sensitivity is improved; thereby guaranteeing the precision of the detection data.
In one embodiment, the region detection module is provided with a human body sensor, and the human body sensor is used for detecting whether people reside in the region; if no personnel stay, the emergency lighting lamp is not started;
the human body sensor adopts an infrared imaging recognition sensor and/or a sound recognition sensor.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the human body sensors are correspondingly arranged in the regions to detect whether personnel reside, if the personnel reside, the emergency lighting lamp is not started, the energy consumption of the system can be reduced, and the energy saving performance of the system operation is realized; the human body sensor can adopt an infrared imaging recognition sensor, namely, infrared imaging is adopted, and the human body recognition is realized by combining an image recognition technology; a voice recognition sensor can also be adopted, namely, peripheral voice is collected to carry out voice recognition, and whether the person speaks or walks is judged to determine whether the person is present or not; of course, the combination of the infrared imaging recognition sensor and the sound recognition sensor can be preferentially adopted, the detection conditions of the two sensors are compared to determine whether people reside in the area, the detection accuracy can be improved, and the misjudgment probability can be reduced.
In one embodiment, as shown in fig. 7, the first communication module is configured with a second amplifying circuit, which includes a differential amplifying module U4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a resistor R14, a resistor R15, a resistor R16, and an operational amplifier U5;
the pin 3 and the pin 2 of the differential amplification module U4 are input ends; the pin 1 of the differential amplification module U4 is grounded; the pin 4 of the differential amplification module U4 is connected with the cathode of the capacitor C5 and connected with-15V voltage, and the anode of the capacitor C5 is grounded; a pin 7 of the differential amplification module U4 is connected with the anode of the capacitor C6 and is connected with +15V voltage, the cathode of the capacitor C6 is grounded, and a pin 8 of the differential amplification module U4 is overhead; a pin 5 and a pin 6 of the differential amplification module U4 are connected with an anode of a capacitor C7, a cathode of the capacitor C7 is connected with one end of a resistor R14 and an input end pin 3 of the operational amplifier U5, and the other end of the resistor R14 is grounded;
an input end pin 2 of the operational amplifier U5 is connected with one end of a resistor R15 and one end of a resistor R16, and the other end of the resistor R15 is grounded; a pin 7 of the operational amplifier U5 is connected with the anode of a capacitor C8 and is connected with +15V voltage, and the cathode of the capacitor C8 is grounded; a pin 4 of the operational amplifier U5 is connected with the cathode of the capacitor C9 and is connected with-15V voltage, and the anode of the capacitor C9 is grounded; and the pin 6 of the operational amplifier U5 is connected with the other end of the resistor R16 and serves as an output end.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the second amplifying circuit is arranged on the first communication module, so that the loss of the received remote signal transmission of the sub-control module is compensated, and a reliable and easily-recognized signal is provided for the main control module; the differential amplification module U4 and the operational amplifier U5 are adopted to amplify the signal in two steps, firstly, a differential amplification mode is adopted to make up for the drift defect and improve the signal-to-noise ratio; and the signal is secondarily amplified by the operational amplifier, so that the identifiability of the signal can be greatly improved, and the quality and the reliability of signal transmission can be guaranteed.
In one embodiment, the general control module is connected with a remote terminal by adopting the Internet of things and accesses remote terminal searching software; when the master control module finds out a software fault through self-checking, software repair is carried out through a remote terminal; if the remote terminal is found to be provided with the upgrade software through regular access, software updating is automatically performed.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the remote terminal is connected in an Internet of things mode, can be a management terminal and is generally provided by a system provider, software faults can be automatically repaired in time through remote access, and software upgrading services can be acquired earlier; the regular access mode can reduce the resource occupancy rate and the energy consumption.
In one embodiment, the master control module is connected with a high-definition camera and a memory, and the high-definition camera is used for regularly shooting a color image of the standby power cable; the memory stores an aging color chart of the scrapped cable;
the master control module periodically adopts the following formula to evaluate the aging degree of the standby power cable through image processing and identification:
in the above formula, S represents the similarity between the color image of the standby power cable and the aged color image of the scrapped cable; (i, j) pixel coordinates representing a color image of the backup power cable; mu.s (i,j) A chromaticity value at a pixel coordinate point (i, j) representing a color image of the backup power cable;
representing the average chroma value of each pixel point of the aging color chart of the scrapped cable; gamma ray (i,j) A luminance value at a pixel coordinate point (i, j) representing a color image of the backup power cable;
representing the average brightness value of each pixel point of the aging color chart of the scrapped cable; tau. (i,j) A spectral value at a pixel coordinate point (i, j) representing a color image of the backup power cable;
representing the average spectral value of each pixel point of the aging color chart of the scrapped cable;
if the calculated similarity is higher than a preset aging threshold value, the standby power supply cable is seriously aged, the master control module sends out warning information, the prompting information can be one or more of character information displayed by a touch display screen, light prompt sent by a working indicator lamp or sound prompt sent by a buzzer, and the prompting information can be remotely sent through network connection, so that maintenance personnel can take measures in time to eliminate potential safety hazards.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the standby power cable image is shot and compared with the pre-stored scrapped cable image, the reciprocal of each contrast of the standby power cable image and the scrapped cable image is used as the similarity, and the evaluation data of the similarity on the aging degree of the standby power cable is used, so that the service life of the standby power cable is monitored and quantitatively analyzed, maintenance personnel are reminded to take measures to eliminate potential safety hazards in time, risks are reduced, and the system self-checking capability is improved; the similarity calculation formula adopted by the scheme is simple, the operability is strong, the data calculation amount is small, the control energy consumption can be further reduced by adopting a periodic evaluation mode, and in practical use, the evaluation time or period can be reasonably determined in equipment use occasions, so that the risk caused by aging of the standby power supply cable can be eliminated.
In one embodiment, the first communication module and the second communication module adopt ZigBee wireless network connection for data transmission;
the first communication module is internally provided with a signal model for receiving the ZigBee wireless network, and the function expression of the signal model is as follows:
in the above formula, P (t) represents a signal model function of the ZigBee wireless network; n represents the number of signal components of the time-frequency overlapping ZigBee wireless network, and each signal component is independent and irrelevant; a. The ik Representing the amplitude of the ith signal component at time k; f. of i Represents the ith signal component carrier frequency; t represents a signal transmission time; beta is a ik Representing the ith signal componentModulation of the carrier phase at time k; γ represents a transmission time duration of a unit symbol length; l is i Represents a symbol length of an i-th signal component; v (t) denotes mean 0 and variance σ 2 Smooth white gaussian noise; f. of i () A raised cosine shaping filter function representing the ith signal component with roll-off coefficient α, which can be expressed as:
wherein f is i (t) represents the raised cosine shaping filter function over the signal transmission time t.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the first communication module and the second communication module are connected through the ZigBee wireless network, so that signal lines do not need to be laid in the data transmission of the sub-control module and the main control module, the cost is low, and the investment can be reduced; the signal transmission control is carried out through the signal model, so that the signal processing efficiency is improved, the data transmission efficiency is further improved, and the signal receiving of the first communication module is facilitated; the function expression adopted by signal model processing in the transmission process can prevent interference, eliminate noise and improve precision; the processing module can conveniently collect, process and calculate the collected data in real time.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An emergency lighting centralized power supply control system is characterized by comprising a master control module, a plurality of branch control modules and a self-checking module;
the main control module is connected with a first communication module and an acquisition module, the acquisition module is used for detecting standby power supply data, the main control module is connected with each branch control module through the first communication module, and emergency lighting is controlled according to a preset scheme;
the sub-control module is configured with a second communication module and an area detection module, the sub-control module is used for controlling emergency lighting lamps in an area, the area detection module is used for detecting area lighting data, and the second communication module is used for carrying out data interaction with the first communication module;
the self-checking module is connected with the master control module and used for performing system diagnosis according to the standby power supply data and the regional lighting data and providing a diagnosis result.
2. The centralized power control system for emergency lighting according to claim 1, wherein the master control module is provided with a current-limiting voltage-stabilizing circuit for controlling the electrical output of the standby power supply, the current-limiting voltage-stabilizing circuit comprises a current-limiting module, a field effect transistor Q1, a bandgap reference voltage module, an amplifier U1, an error amplifier U2, a variable resistor R1, a variable resistor R2 and a variable resistor R3;
the input end of the current limiting module is connected with a standby power supply, the output end of the current limiting module is connected with the source electrode of the field-effect tube Q1, and the drain electrode of the field-effect tube Q1 is connected with the battery module;
the control end of the current limiting module is connected with a pin 4 of an error amplifier U2, an input pin 1 of the error amplifier U2 is connected with an output pin 4 of the amplifier U1 through a variable resistor R1, a pin 3 of the error amplifier U2 is respectively connected with a band-gap reference voltage module and a pin 3 of the amplifier U1, and an output pin 5 of the error amplifier U2 is connected with a grid electrode of a field effect tube Q1;
an input pin 1 of an amplifier U1 is connected with a band-gap reference voltage module, an input pin 2 of the amplifier U1 is respectively connected with one end of a variable resistor R2 and one end of a variable resistor R3, the other end of the variable resistor R2 is connected with an input pin 1 of an error amplifier U2, and the other end of the variable resistor R3 is grounded;
an input pin 2 of the error amplifier U2 is connected with a drain electrode of the field effect transistor Q1 to serve as a power supply output end.
3. The emergency lighting centralized power control system according to claim 1, wherein the general control module is configured with an overvoltage protection sub-module, the overvoltage protection sub-module comprises an overvoltage protection circuit, and the overvoltage protection circuit comprises a resistor R4, a resistor R5, a resistor R6, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, a capacitor C2 and a mutual inductor;
the mutual inductor is used for voltage detection, the mutual inductor is connected with one end of a resistor R4, and the other end of the resistor R4 is respectively connected with the cathode of the diode D1 and the anode of the capacitor C1; the cathode of the capacitor C1 is respectively connected with the anode of the diode D3 and the cathode of the diode D4, the cathode of the diode D3 is respectively connected with one end of the resistor R6 and the anode of the capacitor C2, and the anode of the diode D4 and the cathode of the capacitor C2 are grounded; the other end of the resistor R6 is respectively connected with the anode of the diode D1 and the anode of the diode D2, the cathode of the diode D2 is connected with one end of the resistor R5, and the other end of the resistor R5 transmits signals to the master control module.
4. The emergency lighting centralized power supply control system according to claim 1, wherein the sub-control module is configured with an emergency lighting lamp control circuit, and the emergency lighting lamp control circuit comprises a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D5, a triode Q2, a triode Q3, a field effect tube assembly M1 and a field effect tube assembly M2; the field effect tube assembly M1 and the field effect tube assembly M2 are both field effect tubes connected with diodes in parallel;
a power supply V + is introduced into a drain electrode of the field effect tube component M1 and a drain electrode of the field effect tube component M2, a grid electrode of the field effect tube component M1 is connected with one end of a resistor R9, a grid electrode of the field effect tube component M2 is connected with one end of a resistor R10, and the other end of the resistor R9 is connected with the other end of the resistor R10 and connected into a sub-control module;
the source electrode of field effect tube subassembly M1 is connected with the source electrode of field effect tube subassembly M2, the negative pole of diode D5, the one end of resistance R7, triode Q3's projecting pole and emergency lighting lamps and lanterns respectively, triode Q3's base is connected with resistance R8's one end, resistance R8's the other end is connected with resistance R7's the other end and triode Q2's projecting pole respectively, diode D5's positive pole and triode Q2's collecting electrode ground connection respectively, triode Q2's base and triode Q3's collecting electrode are connected and are gone into and divide the accuse module.
5. The centralized power control system for emergency lighting according to claim 1, wherein the first communication module is configured with a filter circuit, the filter circuit comprises a filter module, a level conversion module, a switch K1 and a switch K2, and the filter module comprises a low-band filter module and a high-band filter module;
the first communication module is switched by a selector switch K1 and respectively input into the low-frequency band filtering module or the high-frequency band filtering module; the master control module is respectively connected with the output ends of the low-frequency band filtering module and the high-frequency band filtering module through a selector switch K2;
a low level pin of the level conversion module is respectively connected with low level pins of the filtering module, the selector switch K1 and the selector switch K2; and a high-level pin of the level conversion module is respectively connected with high-level pins of the filtering module, the selector switch K1 and the selector switch K2.
6. The centralized power control system for emergency lighting according to claim 1, wherein the second communication module is configured with an amplification circuit; the amplifying circuit comprises a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4 and an amplifier U3;
one end of the resistor R11 is a signal end, the other end of the resistor R11 is respectively connected with the anode of the capacitor C3 and an input pin 1 of the amplifier U3, and an input pin 2 of the amplifier U3 is connected with a power supply; the negative electrode of the capacitor C3 is connected with one end of the resistor R12, the other end of the resistor R12 is connected with an output pin of the amplifier U3 and one end of the resistor R13, the other end of the resistor R13 is connected with the positive electrode of the capacitor C4, the negative electrode of the capacitor C4 is grounded, and the other end of the resistor R13 is connected with the second communication module.
7. The centralized power control system for emergency lighting according to claim 1, wherein the area detection module is provided with a human body sensor for detecting whether a person resides in the area; if no personnel stay, the emergency lighting lamp is not started;
the human body sensor adopts an infrared imaging recognition sensor and/or a sound recognition sensor.
8. The centralized power control system for emergency lighting according to claim 1, wherein the first communication module is configured with a second amplifying circuit, and the second amplifying circuit comprises a differential amplifying module U4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a resistor R14, a resistor R15, a resistor R16 and an operational amplifier U5;
the pin 3 and the pin 2 of the differential amplification module U4 are input ends; the pin 1 of the differential amplification module U4 is grounded; the pin 4 of the differential amplification module U4 is connected with the cathode of the capacitor C5 and connected with-15V voltage, and the anode of the capacitor C5 is grounded; a pin 7 of the differential amplification module U4 is connected with the anode of the capacitor C6 and is connected with +15V voltage, the cathode of the capacitor C6 is grounded, and a pin 8 of the differential amplification module U4 is overhead; a pin 5 and a pin 6 of the differential amplification module U4 are connected with an anode of a capacitor C7, a cathode of the capacitor C7 is connected with one end of a resistor R14 and an input end pin 3 of the operational amplifier U5, and the other end of the resistor R14 is grounded;
the input end pin 2 of the operational amplifier U5 is connected with one end of a resistor R15 and one end of a resistor R16, and the other end of the resistor R15 is grounded; a pin 7 of the operational amplifier U5 is connected with the anode of a capacitor C8 and is connected with +15V voltage, and the cathode of the capacitor C8 is grounded; a pin 4 of the operational amplifier U5 is connected with the cathode of the capacitor C9 and is connected with-15V voltage, and the anode of the capacitor C9 is grounded; and a pin 6 of the operational amplifier U5 is connected with the other end of the resistor R16 and is used as an output end.
9. The emergency lighting centralized power control system according to claim 1, wherein the master control module is connected with the remote terminal by using the internet of things, and accesses the remote terminal to search software; when the master control module finds out a software fault through self-checking, software repair is carried out through a remote terminal; and if the remote terminal is found to be provided with the upgrading software through regular access, automatically updating the software.
10. The emergency lighting centralized power control system according to any one of claims 1 to 9, wherein the master control module is connected with a high-definition camera and a memory, and the high-definition camera is used for regularly shooting a color image of the standby power cable; the memory stores an aging color chart of the scrapped cable;
the master control module periodically adopts an image comparison mode to evaluate the aging degree of the standby power cable through image processing and identification; and if the evaluation result is that the standby power cable is seriously aged, warning information is sent.
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