Intrinsically safe explosion-proof emergency marker lamp control system

Abstract

The utility model relates to an intrinsically safe explosion-proof emergency marker lamp control system, which is characterized in that a control module is in communication connection with a communication module, and the control module is connected with a driving module and is used for obtaining a control signal according to an instruction signal sent by the communication module; the driving module is connected with the evacuation indicating lamp panel module and used for driving the evacuation indicating lamp panel module to be lightened based on the control signal; the first intrinsic safety module is connected in series between the output end of the driving module and the input end of the evacuation indicating lamp panel module, and the second intrinsic safety module is connected with the output end of the evacuation indicating lamp panel module. According to the arrangement, energy output to the evacuation indicator lamp panel module is limited and controlled through the first intrinsic safety module and the second intrinsic safety module; even if the evacuation indicating lamp panel module breaks down, the second intrinsic safety module can ensure that combustion or explosion cannot be caused by limiting current and cutting off a circuit when it is detected that output energy possibly exceeds a safety threshold value.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof emergency sign lights, in particular to an intrinsically safe explosion-proof emergency sign light control system. Background Art

[0002] Emergency sign lights are commonly used for illumination and guidance in emergency situations. Therefore, they typically contain built-in rechargeable batteries that can activate in the event of a short circuit or open circuit, providing emergency safety guidance. Emergency sign lights play a crucial role in special situations, such as mines, tunnels, and other flammable and explosive locations, as well as those exposed to dust and gas.

[0003] An intrinsically safe explosion-proof marker lamp with patent number CN202323307096.X is isolated from non-intrinsically safe circuits through a lamp drive state control circuit with a safety barrier, a lamp working state detection circuit with a safety barrier, and an intrinsically safe barrier energy control circuit. However, when a lamp fails, the switch tube on the lamp drive state control circuit with a safety barrier connected to the output end of the lamp and the intrinsically safe module on the lamp drive state control circuit with a safety barrier will be damaged, and the Zener diode on the lamp working state detection circuit with a safety barrier will also be damaged. Although an intrinsically safe explosion-proof marker lamp solves the problem of isolating intrinsically safe circuits from non-intrinsically safe circuits, it can easily damage multiple intrinsically safe modules and is relatively expensive. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide an intrinsically safe explosion-proof emergency sign light control system, including: a power module, a communication module, a control module, a drive module, an intrinsically safe module and an evacuation indicator light board module;

[0005] The power module is used to supply power to the communication module, the control module and the drive module;

[0006] The control module is in communication connection with the communication module, and the control module is connected to the input end of the driving module, and is used to obtain a control signal according to the command signal sent by the communication module, and output the control signal to the input end of the driving module;

[0007] The output end of the driving module is connected to the input end of the evacuation indicator light board module, and is used to drive the evacuation indicator light board module to light up to indicate the evacuation path;

[0008] The intrinsic safety module includes a first intrinsic safety module and a second intrinsic safety module. The first intrinsic safety module is connected in series between the output end of the drive module and the input end of the evacuation indicator light board module, and the second intrinsic safety module is connected to the output end of the evacuation indicator light board module.

[0009] Preferably, there are a plurality of evacuation indicator light panel modules, and the input and output ports of each evacuation indicator light panel module are respectively connected to a first intrinsically safe module and a second intrinsically safe module.

[0010] Preferably, it includes a switch control module, the control module is connected to the switch control module, the switch control module is connected to the second intrinsic safety module, and the switch control module is connected to the drive module through the second intrinsic safety module, and controls the working state of the drive module according to the control signal output by the control module.

[0011] Preferably, an indicator light status monitoring module is included, the indicator light status monitoring module is connected to the control module, and the indicator light status monitoring module is used to detect the indicator light status to obtain status information and transmit the status information to the control module;

[0012] The control module is used to change the control signal accordingly according to the state.

[0013] Preferably, the switch control module includes two transistors, and the two transistors constitute a constant current drive control circuit.

[0014] Preferably, the indicator light status monitoring module is connected to a constant current drive control circuit.

[0015] Preferably, the intrinsically safe module includes a voltage stabilizing module, an overcurrent protection module and a current limiting module, and the voltage stabilizing module, the overcurrent protection module and the current limiting module are connected in series.

[0016] Preferably, a temperature protection module is provided on the driving module.

[0017] Preferably, the chip used in the control module is TD306A01.

[0018] The beneficial effects of the utility model are as follows: the energy output to the evacuation indicator light panel module is limited and controlled by the first intrinsically safe module and the second intrinsically safe module; even if the evacuation indicator light panel module fails, the second intrinsically safe module can limit the current and cut off the circuit when it detects that the output energy may exceed the safety threshold, thereby ensuring that the energy output to the site does not reach a dangerous level that can cause combustion or explosion; the cost is low and the isolation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0020] Figure 1 This is a principle block diagram of this embodiment;

[0021] Figure 2 This is the first part of the circuit diagram of this embodiment;

[0022] Figure 3 This is the second part of the circuit diagram of this embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0025] The directional and positional terms used in this invention, such as "upper," "lower," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are used solely to refer to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are intended to illustrate and facilitate understanding of this invention and are not intended to limit the scope of protection of this invention.

[0026] like Figures 1 to 3 As shown, the utility model provides an intrinsically safe explosion-proof marker light control system, comprising: a power module 1, a communication module 2, a control module 3, a drive module 4, an intrinsically safe module 5 and an evacuation indicator light board module 6;

[0027] The power module 1 is used to supply power to the communication module 2, the control module 3 and the drive module 4;

[0028] The control module 3 is connected to the communication module 2 in a communication manner, and is connected to the input end of the driving module 4, for obtaining a control signal according to the command signal sent by the communication module 2, and outputting the control signal to the input end of the driving module 4;

[0029] The output end of the driving module 4 is connected to the input end of the evacuation indicator light board module 6, and is used to drive the evacuation indicator light board module 6 to light up to indicate the evacuation path;

[0030] The intrinsic safety module 5 includes a first intrinsic safety module 51 and a second intrinsic safety module 52. The first intrinsic safety module 51 is connected in series between the output end of the driving module 4 and the input end of the evacuation indicator light board module 6, and the second intrinsic safety module 52 is connected to the output end of the evacuation indicator light board module 6.

[0031] It can be understood that by connecting the input and output ends of the evacuation indicator light panel module to the first intrinsically safe module and the second intrinsically safe module respectively, it can be ensured that regardless of whether the evacuation indicator light panel module is in a normal or faulty state, the energy transmitted to the site through it is ensured to be intrinsically safe.

[0032] The power module 1 includes a polarity conversion module, which includes a protection circuit and a rectifier filter circuit. The protection circuit is used to protect sensitive electronic components from overvoltage damage caused by transient voltage, electrostatic discharge, lightning and other factors.

[0033] The power supply module 1 includes a first power supply module and a second power supply module, the first power supply module is used to power the communication module 2 and the control module 3, and the second power supply module is used to power the drive module 4; in this embodiment, the first power supply module is a 5V power supply and the second power supply module is a 13V power supply module, but the specific power supply voltages of the first power supply module and the second power supply module are related to the communication module 2, control module 3 and drive module 4 used in the specific circuit, and are not limited to the specific power supply voltages of the first power supply module and the second power supply module.

[0034] The driver module 4 is provided with a temperature protection module. It is understood that there are various types of temperature protection modules, such as a temperature protector, a thermal protector, a temperature fuse, a temperature-controlled switch, a temperature protection relay, etc. The driver module 4 in the present invention can use any chip with a driving function. In this embodiment, the chip used is the XL4001.

[0035] There are multiple evacuation indicator light panel modules 6 , and the number of the intrinsic safety modules 5 is the same as that of the evacuation indicator light panel modules. The intrinsic safety module 5 is composed of a first intrinsic safety module 51 and a second intrinsic safety module 52 .

[0036] It can be understood that the driving module 4 is connected to the first intrinsic safety module 51 and provides driving power to the first intrinsic safety module 51 so that the evacuation indicator light board module 6 can work normally; in this embodiment, the number of first intrinsic safety modules can be one, or it can be the same as the evacuation indicator light board module 6; the number of second intrinsic safety modules 52 is the same as the evacuation indicator light board module 6.

[0037] It includes a switch control module 7, the control module 3 is connected to the switch control module 7, the switch control module 7 is connected to the second intrinsic safety module 52, and the switch control module 7 is connected to the drive module 4 through the second intrinsic safety module 52. According to the control signal output by the control module 3, the working state of the drive module 4 is controlled according to the control signal.

[0038] It includes an indicator light status monitoring module 8, which is connected to the control module 3 and is used to detect the indicator light status to obtain status information and transmit the status information to the control module 3; the control module 3 is used to change the control signal according to the status.

[0039] The switch control module 7 includes two transistors, and the two transistors constitute a constant current drive control circuit.

[0040] The indicator light status monitoring module 8 is connected to the constant current drive control circuit.

[0041] It can be understood that when the evacuation indicator light panel module 6 is in normal working condition, the constant current drive control circuit is turned on; when the evacuation indicator light panel module 6 is in a fault state, the constant current drive control circuit is not turned on, and the indicator light status monitoring module 8 determines the working status of the evacuation indicator light panel module 6 by monitoring the working status of the constant current drive control circuit.

[0042] The intrinsic safety module 5 includes a voltage stabilizing module 53 , which is used to stabilize the voltage signals at both ends of the evacuation indicator light board module 6 .

[0043] The intrinsic safety module 5 includes an overcurrent protection module 54 , which is connected to the voltage stabilizing module 53 . The overcurrent protection module 54 is used to ensure that the current signal flowing into the evacuation indicator light board module 6 is less than its rated current.

[0044] The intrinsic safety module 5 includes a current limiting module 55 , which is connected to the overcurrent protection module 54 and is used to limit the current in the intrinsic safety module 5 .

[0045] It can be understood that the voltage stabilizing module 53, the overcurrent protection module 54 and the current limiting module 55 constitute a safety barrier circuit. Even if any fault occurs in the non-intrinsically safe circuit, including high-voltage electric shock, electrical sparks and device damage, the circuits connected to the voltage stabilizing module 53 should not be damaged and no electric sparks should be generated. At the same time, the current limiting module 55 is used to enhance the extreme protection capability of the overcurrent protection module 54.

[0046] In this embodiment, the voltage stabilizing module 53 is a circuit formed by connecting multiple Zener diodes in parallel, the overcurrent protection module 54 is a fuse, and the current limiting module 55 is a circuit formed by connecting multiple resistors in series and parallel. There are no restrictions on the use of other voltage stabilizing modules 53, overcurrent protection modules 54, and current limiting modules 55. This embodiment has fewer components, a small size, a high cost-effectiveness, a simple design, and a low price.

[0047] The chip used in the control module 3 is TD306A01. It is understandable that the present invention can use any chip with communication function and multiple input and output ports.

[0048] Those skilled in the art will understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0049] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

[0050] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware portion can be implemented using dedicated logic; the software portion can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated hardware. Those skilled in the art will understand that the above-mentioned devices and methods can be implemented using computer-executable instructions and / or contained in processor control code, for example, such code is provided on a programmable memory or a data carrier such as an optical or electronic signal carrier.

[0051] In addition, although the operations of the method of the present invention are described in a particular order in the accompanying drawings, this does not require or imply that these operations must be performed in this particular order, or that all the operations shown must be performed to achieve the desired result. On the contrary, the steps depicted in the flowchart can change the order of execution. Additionally or alternatively, certain steps can be omitted, multiple steps can be combined into one step, and / or one step can be decomposed into multiple steps. It should also be noted that the features and functions of two or more devices according to the present invention can be embodied in one device. Conversely, the features and functions of one device described above can be further divided into multiple devices to be embodied.

[0052] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed, and the present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An intrinsically safe explosion-proof emergency sign light control system, characterized in that: include: A power module (1), a communication module (2), a control module (3), a drive module (4), an intrinsic safety module (5) and an evacuation indicator light panel module (6); The power module (1) is used to supply power to the communication module (2), the control module (3) and the drive module (4); The control module (3) is in communication connection with the communication module (2), and the control module (3) is connected to the input end of the drive module (4), and is used to obtain a control signal according to the command signal sent by the communication module (2), and output the control signal to the input end of the drive module (4); The output end of the driving module (4) is connected to the input end of the evacuation indicator light panel module (6) and is used to drive the evacuation indicator light panel module (6) to light up based on the control signal; The intrinsically safe module (5) comprises a first intrinsically safe module (51) and a second intrinsically safe module (52), wherein the first intrinsically safe module (51) is connected in series between the output end of the drive module (4) and the input end of the evacuation indicator light panel module (6), and the second intrinsically safe module (52) is connected to the output end of the evacuation indicator light panel module (6).

2. The intrinsically safe explosion-proof emergency sign light control system according to claim 1, characterized in that: There are a plurality of evacuation indicator light panel modules (6), and the input and output ports of each evacuation indicator light panel module (6) are respectively connected to a first intrinsically safe module (51) and a second intrinsically safe module (52).

3. The intrinsically safe explosion-proof emergency sign light control system according to claim 1 is characterized in that: The invention comprises a switch control module (7), wherein the control module (3) is connected to the switch control module (7), the switch control module (7) is connected to the second intrinsically safe module (52), and the switch control module (7) is connected to the drive module (4) via the second intrinsically safe module (52), and controls the working state of the drive module (4) according to the control signal output by the control module (3).

4. The intrinsically safe explosion-proof emergency sign light control system according to claim 3 is characterized in that: The switch control module (7) comprises two triodes, and the two triodes constitute a constant current drive control circuit.

5. The intrinsically safe explosion-proof emergency sign light control system according to claim 4, characterized in that: The system comprises an indicator light state monitoring module (8), the indicator light state monitoring module (8) being connected to the control module (3), and the indicator light state monitoring module (8) being used to detect the indicator light state to obtain state information, and transmit the state information to the control module (3); The control module (3) is used to change the control signal accordingly according to the status information.

6. The intrinsically safe explosion-proof emergency sign light control system according to claim 5, characterized in that: The indicator light status monitoring module (8) is connected to the constant current drive control circuit.

7. The intrinsically safe explosion-proof emergency sign light control system according to claim 1, characterized in that: The intrinsically safe module (5) comprises a voltage stabilizing module (53), an overcurrent protection module (54) and a current limiting module (55), wherein the voltage stabilizing module (53), the overcurrent protection module (54) and the current limiting module (55) are connected in series.

8. The intrinsically safe explosion-proof emergency sign light control system according to claim 1, characterized in that: The driving module (4) is provided with a temperature protection module.

9. The intrinsically safe explosion-proof emergency sign light control system according to claim 1, characterized in that: The chip used in the control module (3) is TD306A01.

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