CN218995913U - Branching detection device for fire emergency lighting and evacuation indication system - Google Patents
Branching detection device for fire emergency lighting and evacuation indication system Download PDFInfo
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- CN218995913U CN218995913U CN202222631841.5U CN202222631841U CN218995913U CN 218995913 U CN218995913 U CN 218995913U CN 202222631841 U CN202222631841 U CN 202222631841U CN 218995913 U CN218995913 U CN 218995913U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model provides a shunt detection device for a fire emergency lighting and evacuation indicating system, and relates to the field of fire emergency. The circuit comprises: the system comprises a power supply circuit, a communication circuit, an MCU control circuit and a fault information acquisition circuit; the power supply circuit includes: two buses, a diode, a capacitor and a current limiting resistor; the communication circuit includes: a voltage dividing resistor and a triode; the MCU control circuit includes: a microprocessor; the fault information acquisition circuit includes: voltage dividing resistor, diode, capacitor, RC filter network. By arranging the fault information acquisition circuit, the acquisition function of each shunt fault information is convenient to realize.
Description
Technical Field
The utility model relates to the field of fire emergency, in particular to a shunt detection device for a fire emergency lighting and evacuation indication system.
Background
The fire emergency lighting and evacuation indicating system is one system for providing fire emergency lighting and evacuation indication for people evacuation and fire operation in fire and other emergency, and consists of various fire emergency lamps, emergency lighting controller, emergency lighting central power source, emergency lighting distribution box and relevant devices. The system is matched with a fire alarm controller for use, can accurately give out a safe evacuation path indication at the moment of fire, helps people in a building to select escape route, guides the safe escape direction and ensures the personal safety of the people. The system is mainly applied to places such as airports, rail transit, tunnels, passenger transport hubs, hospitals, schools, gymnasiums, exhibition halls, hotels, commercial building plates and the like. The shunt detection device in the system is mainly used in an emergency illumination centralized power supply and an emergency illumination distribution box, and has the function of decomposing electric energy provided by the emergency illumination centralized power supply and a power supply device in the emergency illumination distribution box into a plurality of shunts to supply power for the fire emergency lamp, so that single shunt power supply is avoided, and the system cannot work normally when a shunt fault occurs. Currently, most related technical solutions simply provide an independent overload and short-circuit protection device on each shunt of the shunt device, and have no fault information acquisition and communication functions.
Disclosure of Invention
In view of the above, the present utility model provides a shunt detection device for a fire emergency lighting and evacuation indication system, which is convenient for realizing the function of collecting fault information of each shunt.
In order to achieve the aim of the utility model, the following technical scheme is adopted:
in a first aspect, the present utility model provides a shunt detection device for a fire emergency lighting and evacuation indication system, comprising: the system comprises a power supply circuit, a communication circuit, a microprocessor control circuit and a fault information acquisition circuit;
the signal input circuit includes: the input ends of the two buses are used for being connected with the output ends of the front two-bus power supply device, the output end of the bus+ is electrically connected with a non-return diode, the output end of the bus-is grounded, and the voltage entering the bus+ is converted into a power supply signal through the non-return diode and is used for supplying power to the communication circuit, the microprocessor control circuit and the fault information acquisition circuit;
the communication circuit comprises: the input end of the voltage division unit circuit is connected with the output end of the bus+;
the input triode unit circuit comprises: the output end of the voltage division unit circuit is electrically connected with the base electrode of the first triode, one end of the filter capacitor is electrically connected with the base electrode of the first triode, the other end of the filter capacitor is grounded, the first grounding resistor is electrically connected with the emitting electrode of the first triode, the collecting electrode of the first triode is electrically connected with the output end of the power supply signal, and a node between the emitting electrode of the first triode and the first grounding resistor is connected with the microprocessor control circuit;
the input end of the output triode unit circuit is electrically connected with the output end of the microprocessor control circuit, and the output end of the output triode unit circuit is electrically connected to the output end of the bus+;
the fault information acquisition circuit comprises: and the first end of the circuit protection device is connected with the output end of the bus+ and the second end of the circuit protection device is electrically connected with the output port of the shunt detection device.
Further, in the shunt detection device for a fire emergency lighting and evacuation indication system, the circuit protection device is a protective tube, and the sampling processing circuit comprises: the input end of the current-limiting voltage-dividing circuit is electrically connected with the second end of the protective tube, the output end of the current-limiting voltage-dividing circuit is electrically connected with the input end of the RC filter circuit, and the output end of the RC filter circuit is electrically connected with the analog-to-digital sampling port of the microprocessor control circuit.
Further, the output end of the RC filter circuit is further provided with a voltage clamping circuit, the voltage clamping circuit is composed of an independent device with two diodes connected in series, the independent device comprises three pins, a first pin of the independent device is grounded, a third pin of the independent device is electrically connected to a node between the output end of the RC filter circuit and an analog-to-digital sampling port of the microprocessor control circuit, and a second pin of the independent device is connected to the output end of the power signal.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized in that the voltage dividing circuit comprises: the first voltage dividing resistor is connected with the second voltage dividing resistor in series, a first end of the first voltage dividing resistor is electrically connected with the output end of the bus+, and the output end of the second voltage dividing resistor is grounded.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized in that the output triode unit circuit comprises: the input end of the second current limiting resistor is electrically connected with the output end of the microprocessor control circuit, the output end of the second current limiting resistor is electrically connected with the base electrode of the second triode, the collector electrode of the second triode is electrically connected with the output end of the bus+, the emitter electrode of the second triode is electrically connected with the first end of the second grounding resistor, and the second end of the second grounding resistor is grounded.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized in that a first voltage stabilizing filter capacitor is electrically connected between the output end of the power signal and the ground.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized by comprising: the power supply of microprocessor power supply circuit's power supply's output still is equipped with power indication circuit, power indication circuit includes: the LED comprises an LED and a first end of a fifth current limiting resistor electrically connected with the anode of the LED, wherein the cathode of the LED is grounded.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized in that the power supply circuit comprises: a microprocessor power supply circuit, the microprocessor power supply circuit comprising: the output ends of the third current-limiting resistor and the fourth current-limiting resistor are electrically connected with a power supply of the microprocessor control circuit, and the second voltage-stabilizing filter capacitor is electrically connected between the output end of the power supply and the ground.
Further, in the shunt detection device for a fire emergency lighting and evacuation indication system, the circuit protection device is a protective tube, and the sampling processing circuit comprises: the input end of the current-limiting voltage-dividing circuit is electrically connected with the second end of the protective tube, the output end of the current-limiting voltage-dividing circuit is electrically connected with the input end of the RC filter circuit, and the output end of the RC filter circuit is electrically connected with the analog-to-digital sampling port of the microprocessor control circuit.
Further, the shunt detection device for the fire emergency lighting and evacuation indication system is characterized in that the current-limiting voltage-dividing circuit comprises: the first resistor, the second resistor, the third resistor and the fourth resistor are sequentially connected in series, the input end of the first resistor is electrically connected with the second end of the fuse tube, the output end of the fourth resistor is grounded, and a node between the third resistor and the fourth resistor is an output end;
the RC filter circuit includes: the output end of the first capacitor is grounded, the input end of the fifth resistor is electrically connected with the output end of the current-limiting voltage-dividing circuit, and a node between the output end of the fifth resistor and the input end of the first capacitor is the output end of the RC filter circuit;
further, the input triode unit circuit further comprises: the first current limiting resistor is electrically connected to a node between the voltage dividing unit circuit and the base electrode of the first triode.
Further, the voltage dividing circuit includes: the first voltage dividing resistor is connected with the second voltage dividing resistor in series, a first end of the first voltage dividing resistor is electrically connected with the output end of the bus+, and the output end of the second voltage dividing resistor is grounded.
Further, a first voltage stabilizing filter capacitor is electrically connected between the output end of the power supply signal and the ground.
The branching detection device for the fire emergency lighting and evacuation indicating system provided by the embodiment of the utility model can solve the problem of the acquisition of the branching fault information when the branching is in fault by arranging the fault information acquisition circuit, is convenient for realizing the function of acquiring the branching fault information, can discover and treat the branching fault in time, and does not influence the normal operation of other branches when the branching is in fault.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a circuit topology of a shunt detection device for a fire emergency lighting and evacuation indication system according to an embodiment of the present utility model;
fig. 2 is a schematic circuit topology diagram of a pre-power supply and a triode according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of a circuit topology for voltage conversion according to an embodiment of the present utility model.
Fig. 4 is a schematic circuit topology of a microprocessor according to an embodiment of the utility model.
Fig. 5 is a schematic diagram of a circuit topology for fault information collection according to an embodiment of the present utility model.
Detailed Description
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.
Example 1
FIG. 1 is a schematic block diagram of a circuit topology of a shunt detection device for a fire emergency lighting and evacuation indication system according to an embodiment of the present utility model; referring to fig. 1, the present utility model provides a shunt detection device for a fire emergency lighting and evacuation indication system, comprising: the system comprises a power supply circuit, a communication circuit, a microprocessor control circuit and a fault information acquisition circuit; the communication circuit comprises: the input end of the voltage division unit circuit is connected with the output end of the bus+.
Referring to fig. 2, in the present embodiment, the power circuit includes: the power supply device comprises a front power supply, a bus+, a bus-microprocessor power supply circuit, wherein the input ends of the bus+ and the bus-are used for being connected with the output end of the front power supply device, the output end of the bus+ is electrically connected with a non-return diode, the output end of the bus-is grounded, and the voltage entering the bus+ is converted into a power supply signal through the non-return diode and is used for supplying power to a communication circuit, a microprocessor control circuit and a fault information acquisition circuit.
The communication circuit comprises: the input end of the voltage division unit circuit is connected with the output end of the bus+; the input triode unit circuit comprises: the output end of the voltage division unit circuit is electrically connected to the base electrode of the first triode Q2, one end of the filter capacitor is electrically connected to the base electrode of the first triode Q2, the other end of the filter capacitor is grounded, the first grounding resistor R6 is electrically connected to the emitter electrode of the first triode Q2, the collector electrode of the first triode Q2 is electrically connected to the output end of the power supply signal, and a node between the emitter electrode of the first triode Q2 and the first grounding resistor R6 is connected to the microprocessor control circuit.
The input triode unit circuit further comprises: the first current limiting resistor R2 is electrically connected to a node between the voltage dividing circuit and the base electrode of the first triode Q2.
The voltage dividing circuit includes: the first voltage dividing resistor R1 is connected with the second voltage dividing resistor R4 in series, the first end of the first voltage dividing resistor R1 is electrically connected with the output end of the BUS BUS+, and the output end of the second voltage dividing resistor R4 is grounded.
The input end of the output triode unit circuit is electrically connected with the PO output end of the microprocessor control circuit, and the output end of the output triode unit circuit is electrically connected to the output end of the BUS BUS+. The output triode unit circuit comprises: the input end of the second current limiting resistor R3 is electrically connected to the output end of the microprocessor control circuit, the output end of the second current limiting resistor R3 is electrically connected to the base electrode of the second triode Q1, the collector electrode of the second triode Q1 is electrically connected to the output end of the BUS BUS+, the emitter electrode of the second triode Q1 is electrically connected to the first end of the second grounding resistor R5, and the second end of the second grounding resistor R5 is grounded.
A first voltage stabilizing filter capacitor C1 is electrically connected between the output end of the power supply signal and the ground.
Referring to FIG. 3, in the present embodiment, the microprocessor power supply circuit includes: the three-phase voltage stabilizing circuit comprises a third current limiting resistor R7, a fourth current limiting resistor R8, a voltage stabilizing diode D2 and a second voltage stabilizing filter capacitor C3, wherein the third current limiting resistor R7 and the fourth current limiting resistor R8 are arranged in parallel, the negative electrode of the voltage stabilizing diode D2 is electrically connected with the output ends of the third current limiting resistor R7 and the fourth current limiting resistor R8, the positive electrode of the voltage stabilizing diode D2 is grounded, the output ends of the third current limiting resistor R7 and the fourth current limiting resistor R8 are electrically connected with a power supply of a microprocessor control circuit, and the second voltage stabilizing filter capacitor C3 is electrically connected between the output end of the power supply and the ground. Referring to fig. 4, in this embodiment, an input terminal of the output triode unit circuit is electrically connected to an output terminal of the microprocessor control circuit, and an output terminal of the output triode unit circuit is electrically connected to an output terminal of the bus+.
The chip U1 in the microprocessor control circuit is a Flash singlechip HT66F0181 with an 8-bit high-performance simplified instruction set, the chip U1 is provided with sixteen pins, wherein eleven pins are applied to the shunt detection device for the fire emergency lighting and evacuation indication system, the eleven pins of the chip U1 are used for connecting a power supply, the second pin is used for address selection, the fifth pin and the seventh pin are used for programming signals, the ninth pin, the tenth pin, the eleventh pin and the twelfth pin are used for fault acquisition signals, the fourteenth pin and the fifteenth pin are used for communication signals, and other pins are suspended.
The microprocessor control circuit is also provided with a terminal XP1 and terminals XP2 and P2, wherein the terminal XP1 is a program programming port; and the terminal XP2 is a jumper seat and realizes device address selection. The terminal P2 is the output of the shunt detection device.
Referring to fig. 5, in the present embodiment, the fault information collecting circuit includes: and the first end of the circuit protection device is connected with the output end of the bus+ and the second end of the circuit protection device is connected with the analog-digital sampling port of the microprocessor control circuit through the sampling processing circuit.
The circuit protection device is a fuse tube F1, and the sampling processing circuit comprises: the input end of the current-limiting voltage-dividing circuit is electrically connected with the second end of the protective tube, the output end of the current-limiting voltage-dividing circuit is electrically connected with the input end of the RC filter circuit, and the output end of the RC filter circuit is electrically connected with the analog-to-digital sampling port of the microprocessor control circuit.
The current limiting and voltage dividing circuit comprises: the first resistor R13, the second resistor R17, the third resistor R21 and the fourth resistor R29 are sequentially connected in series, the input end of the first resistor R13 is electrically connected to the second end of the fuse tube F1, the output end of the fourth resistor R29 is grounded, and a node between the third resistor R21 and the fourth resistor R29 is an output end.
The fault information acquisition circuit comprises: and the first end of the circuit protection device is connected with the output end of the BUS BUS+, and the second end of the circuit protection device is connected with the analog-digital sampling port of the microprocessor control circuit through the sampling processing circuit.
The power supply of microprocessor power supply circuit's power supply's output still is equipped with power indication circuit, power indication circuit includes: the LED comprises an LED and a fifth current limiting resistor R9 electrically connected with the anode of the LED, wherein the cathode of the LED is grounded.
The circuit protection device is a protective tube, and the sampling processing circuit comprises: the input end of the current-limiting voltage-dividing circuit is electrically connected with the second end of the protective tube, the output end of the current-limiting voltage-dividing circuit is electrically connected with the input end of the RC filter circuit, and the output end of the RC filter circuit is electrically connected with the analog-to-digital sampling port of the microprocessor control circuit.
The RC filter circuit includes: the output end of the first capacitor C8 is grounded, the input end of the fifth resistor R25 is electrically connected with the output end of the current-limiting voltage-dividing circuit, and a node between the output end of the fifth resistor R25 and the input end of the first capacitor C8 is the output end of the RC filter circuit;
the output end of the RC filter circuit is also provided with a power supply clamping circuit, the power supply clamping circuit is composed of independent devices with two diodes connected in series, each independent device comprises three pins, a first pin of each independent device is grounded, a third pin of each independent device is electrically connected to a node between the output end of the RC filter circuit and an analog-to-digital sampling port of the microprocessor control circuit, and a second pin of each independent device is connected to the output end of a power supply signal. According to the branching detection device for the fire emergency lighting and evacuation indication system, provided by the embodiment of the utility model, through the arrangement of the fault information acquisition circuit, when a branching is in fault, the problem of the acquisition of the fault information of each branching can be solved, the function of acquiring the fault information of each branching can be conveniently realized, and therefore the branching fault can be timely found and treated. In addition, when the shunt breaks down, other shunts are not affected to work normally.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A shunt detection device for a fire emergency lighting and evacuation indication system, comprising: the system comprises a power supply circuit, a communication circuit, a microprocessor control circuit and a fault information acquisition circuit;
the power supply circuit includes: a two-bus, the two-bus comprising: the input ends of the two buses are used for being connected with the output ends of the front two-bus power supply device, the output end of the bus is electrically connected with a non-return diode, the output end of the bus is grounded, and the voltage entering the bus is converted into a power supply signal through the non-return diode and is used for supplying power to a communication circuit, a microprocessor control circuit and a fault information acquisition circuit;
the communication circuit comprises: the input end of the voltage division unit circuit is connected with the output end of the bus+;
the input triode unit circuit comprises: the output end of the voltage division unit circuit is electrically connected with the base electrode of the first triode, one end of the filter capacitor is electrically connected with the base electrode of the first triode, the other end of the filter capacitor is grounded, the first grounding resistor is electrically connected with the emitting electrode of the first triode, the collecting electrode of the first triode is electrically connected with the output end of the power supply signal, and a node between the emitting electrode of the first triode and the first grounding resistor is connected with the microprocessor control circuit;
the input end of the output triode unit circuit is electrically connected with the output end of the microprocessor control circuit, and the output end of the output triode unit circuit is electrically connected to the output end of the bus+;
the fault information acquisition circuit comprises: the first end of the circuit protection device is connected with the output end of the bus+, the second end of the circuit protection device is connected with the analog-digital sampling port of the microprocessor control circuit through the sampling processing circuit, and the second end of the circuit protection device is electrically connected with the output port of the shunt detection device.
2. A shunt detection device for fire emergency lighting and evacuation indicator systems according to claim 1, wherein the circuit protection device is a protective tube, and the sampling processing circuit comprises: the input end of the current-limiting voltage-dividing circuit is electrically connected with the second end of the protective tube, the output end of the current-limiting voltage-dividing circuit is electrically connected with the input end of the RC filter circuit, and the output end of the RC filter circuit is electrically connected with the analog-to-digital sampling port of the microprocessor control circuit.
3. The shunt detection device for fire emergency lighting and evacuation indication system according to claim 2, wherein the output end of the RC filter circuit is further provided with a voltage clamping circuit, the voltage clamping circuit is composed of an independent device with two diodes connected in series, the independent device comprises three pins, a first pin of the independent device is grounded, a third pin of the independent device is electrically connected to a node between the output end of the RC filter circuit and an analog-to-digital sampling port of the microprocessor control circuit, and a second pin of the independent device is connected to the output end of the power signal.
4. A shunt detection device for fire emergency lighting and evacuation indication systems according to claim 2 or 3, wherein the current limiting voltage dividing circuit comprises: the first resistor, the second resistor, the third resistor and the fourth resistor are sequentially connected in series, the input end of the first resistor is electrically connected with the second end of the fuse tube, the output end of the fourth resistor is grounded, and a node between the third resistor and the fourth resistor is an output end;
the RC filter circuit includes: the output end of the first capacitor is grounded, the input end of the fifth resistor is electrically connected with the output end of the current-limiting voltage-dividing circuit, and a node between the output end of the fifth resistor and the input end of the capacitor is the output end of the RC filter circuit.
5. The shunt detection device for fire emergency lighting and evacuation indication systems of claim 1, wherein the input triode unit circuit further comprises: the first current limiting resistor is electrically connected to a node between the voltage dividing unit circuit and the base electrode of the first triode.
6. A shunt detection device for fire emergency lighting and evacuation indication systems according to claim 1, wherein the voltage divider unit circuit comprises: the first voltage dividing resistor is connected with the second voltage dividing resistor in series, a first end of the first voltage dividing resistor is electrically connected with the output end of the bus+, and the output end of the second voltage dividing resistor is grounded.
7. A shunt detection device for fire emergency lighting and evacuation indication systems according to claim 1, wherein said output triode unit circuit comprises: the input end of the second current limiting resistor is electrically connected with the output end of the microprocessor control circuit, the output end of the second current limiting resistor is electrically connected with the base electrode of the second triode, the collector electrode of the second triode is electrically connected with the output end of the bus+, the emitter electrode of the second triode is electrically connected with the first end of the second grounding resistor, and the second end of the second grounding resistor is grounded.
8. The shunt detection device for fire emergency lighting and evacuation indication systems of claim 1, wherein a first voltage stabilizing filter capacitor is electrically connected between the output of the power signal and ground.
9. A shunt detection device for fire emergency lighting and evacuation indication systems according to claim 1, wherein the power supply circuit comprises: a microprocessor power supply circuit, the microprocessor power supply circuit comprising: the voltage stabilizing circuit comprises a third current limiting resistor, a fourth current limiting resistor, a voltage stabilizing diode and a second voltage stabilizing filter capacitor, wherein the third current limiting resistor and the fourth current limiting resistor are arranged in parallel, the negative electrode of the voltage stabilizing diode is electrically connected to the output ends of the third current limiting resistor and the fourth current limiting resistor, the positive electrode of the voltage stabilizing diode is grounded, the output ends of the third current limiting resistor and the fourth current limiting resistor are electrically connected with a power supply of a microprocessor control circuit, and the second voltage stabilizing filter capacitor is electrically connected between the output end of the power supply and the ground.
10. A shunt detection device for fire emergency lighting and evacuation indication systems according to claim 1, comprising: the power supply of microprocessor control circuit's output still is equipped with power indication circuit, power indication circuit includes: the LED comprises an LED and a fifth current limiting resistor electrically connected with the anode of the LED, wherein the cathode of the LED is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222631841.5U CN218995913U (en) | 2022-10-08 | 2022-10-08 | Branching detection device for fire emergency lighting and evacuation indication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222631841.5U CN218995913U (en) | 2022-10-08 | 2022-10-08 | Branching detection device for fire emergency lighting and evacuation indication system |
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| Publication Number | Publication Date |
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| CN218995913U true CN218995913U (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222631841.5U Active CN218995913U (en) | 2022-10-08 | 2022-10-08 | Branching detection device for fire emergency lighting and evacuation indication system |
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| CN (1) | CN218995913U (en) |
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- 2022-10-08 CN CN202222631841.5U patent/CN218995913U/en active Active
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