Coal bunker multi-environmental parameter detection device and monitoring system thereof

Abstract

The utility model relates to a coal bunker multi-environmental parameter detection device and a monitoring system thereof, and the device comprises a plurality of different sensors which are respectively used for collecting different environmental data; the cable comprises an insulating layer, two conducting wires and a plug, the two conducting wires and the multiple different sensors are all located in the insulating layer, and the multiple different sensors and the plug are connected in parallel and are connected between the two conducting wires in series; the measurement and control module comprises an explosion-proof shell and a circuit board, the circuit board is fixedly installed in the explosion-proof shell, a microprocessor and a plurality of interfaces corresponding to different sensors are integrated on the circuit board, a plurality of slots corresponding to different interfaces are formed in the surface of the explosion-proof shell, each slot is matched with a plug, and the plug is connected with the microprocessor. When the plug is embedded into the slot, the plug is electrically connected with the corresponding interface, the plurality of interfaces are electrically connected with the microprocessor, and the microprocessor is used for receiving environment data acquired by the corresponding sensors through different interfaces and forwarding the environment data to an upper computer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal bunker environment monitoring, in particular to a coal bunker multi-environment parameter detection device. BACKGROUND

[0002] The coal bunker, as a coal storage facility, has multiple safety hazards such as dust explosion, corrosive gas, and spontaneous combustion. Therefore, monitoring the environment of the coal bunker and the environment parameters in the coal pile is of great significance for the safe storage of coal.

[0003] The existing coal bunker environment detection system usually adopts a structure from a sensor to a cable to a measurement and control extension and finally to an upper computer. Among them, the sensor, the cable and the measurement and control extension form an environment parameter detection device. In the current environment parameter detection device, a single sensor is installed on the cable, and the measurement and control extension is connected with the cable through a single interface, that is, a single environment parameter detection device can usually only detect one kind of environment parameter. Once the coal bunker needs to change the collected environment parameters (such as temperature, humidity, gas concentration, etc.), in addition to replacing the cable with different sensors, and because the data transmission protocols of different types of sensors are usually different (I2C / 1-wire / TTL / ADC, etc.) and each interface can only accept specific protocol data, the measurement and control extension with the corresponding interface also needs to be changed, that is, the entire environment parameter detection device needs to be replaced. Not only a lot of time will be wasted, but also the complexity of the environment of the coal bunker, the limited construction conditions and the cost constraints will greatly increase the difficulty of detecting the environment of the coal bunker. At present, there is no effective solution to the problem that the current environment parameter detection device can only detect one kind of environment parameter. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a coal bunker multi-environment parameter detection device to solve the problem that the current environment parameter detection device can only detect one kind of environment parameter.

[0005] In a first aspect, the utility model provides a coal bunker multi-environment parameter detection device, comprising:

[0006] A plurality of different sensors are used to collect different environment data respectively;

[0007] The cable comprises an insulating layer, two wires and a plug, the two wires and the plurality of different sensors are located inside the insulating layer, the plurality of different sensors and the plug are connected in parallel with each other and are connected in series between the two wires respectively;

[0008] The control module includes an explosion-proof shell and a circuit board, the circuit board is fixedly installed in the explosion-proof shell, a microprocessor and a plurality of interfaces corresponding to different sensors are integrated on the circuit board, a plurality of slots corresponding to the different interfaces are arranged on the surface of the explosion-proof shell, each slot is matched with a plug, the plug is electrically connected with the corresponding interface when the plug is embedded in the slot, the plurality of interfaces are electrically connected with the microprocessor, and the microprocessor is used for receiving environmental data collected by the corresponding sensors through the different interfaces and forwarding the environmental data to the upper computer.

[0009] In some embodiments, the plurality of different sensors include a temperature sensor, a humidity sensor and a gas concentration sensor.

[0010] In some embodiments, the plurality of interfaces include a 1-WIRE / TTL interface, an I2C interface and a USART / CAN interface, corresponding to the temperature sensor, the humidity sensor and the gas concentration sensor respectively.

[0011] In some embodiments, the circuit board further integrates an RS485 interface, the RS485 interface is electrically connected with the microprocessor, and the microprocessor is used for forwarding the environmental data to the upper computer through the RS485 interface.

[0012] In some embodiments, the coal bunker multi-environment parameter detection device further includes a flange and an armored pipe, the flange is fixedly installed at one end of the armored pipe and is in communication with the armored pipe inside, an insulating layer is slidably embedded in the inner walls of the armored pipe and the flange, and the surface of the flange is provided with a lock catch for fixing the insulating layer.

[0013] In some embodiments, the cable further includes a tensile steel wire located inside the insulating layer, one end of the tensile steel wire is fixedly connected with the plug, and the material of the tensile steel wire is a 0.2mm 2 steel wire rope.

[0014] In some embodiments, the material of the explosion-proof shell is a cast aluminum shell, and the inside of the explosion-proof shell is sealed by epoxy resin.

[0015] In some embodiments, the materials of the two wires are both 0.3mm 2 tin-plated copper wires, and the material of the insulating layer is 100% virgin high-pressure polyethylene.

[0016] In some embodiments, the material of the flange is stainless steel, and the armored pipe is made of high-strength steel wire.

[0017] In a second aspect, the utility model provides a coal bunker multi-environment parameter monitoring system, including the coal bunker multi-environment parameter detection device and its upper computer of first aspect.

[0018] Compared with the related art, the utility model has the beneficial effects that:

[0019] Through the series of multiple different sensors and the plug on the two wires in the cable, the microprocessor and multiple interfaces corresponding to different sensors on the circuit board in the measurement and control module, and the multiple slots corresponding to different interfaces on the surface of the explosion-proof shell, when the plug is embedded in the slot and electrically connected with the corresponding interface, when different environmental data needs to be collected, only the corresponding sensor and the interface of the sensor are found, the plug is embedded in the slot corresponding to the interface, various environmental data required can be collected and sent to the upper computer through the microprocessor, without additional replacement of the detection device, multiple environmental parameters can be detected, the problem that the current environmental parameter detection device can only detect one environmental parameter is solved, the difficulty of environmental detection of the coal bunker is reduced, and the safety of the coal bunker environment is ensured.

[0020] Details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more clear and simple. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of a coal bunker multi-environmental parameter detection device proposed in the embodiment;

[0022] Figure 2 is a partial structural schematic view of two wires and sensors in the embodiment;

[0023] Figure 3 is a partial structural schematic view of an explosion-proof module and a slot in the embodiment;

[0024] Figure 4 is a structural block diagram of a microprocessor and an interface on a circuit board in the embodiment. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and embodiments.

[0026] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as those commonly understood by a person having ordinary skill in the art to which the present application belongs. The terms "one", "a", "an", "the", "these", and similar terms in the present application do not mean "only one" or "exactly one", but can mean "one or more". The terms "include", "contain", "have", and any variation thereof in the present application are intended to cover inclusive not exclusive inclusion; for example, a process, method, system, product or device containing a series of steps or modules (units) is not limited to the listed steps or modules (units), but can include steps or modules (units) not listed, or can include other steps or modules (units) inherent to the process, method, product or device. The terms "connect", "connected", "couple" and similar terms in the present application are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The term "multiple" in the present application means two or more. The term "and / or" describes the relationship between the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. Generally, the character " / " means that the objects before and after are "or" relationship. The terms "first", "second", "third" and the like in the present application are only used to distinguish similar objects, and do not represent a specific order of the objects.

[0027] Referring to Figure 1 In the present embodiment, a coal bunker multi-environment parameter detection device is provided, which comprises a plurality of sensors 13 for collecting different environmental data, a cable 1, a measurement and control module 2, a tensile steel wire 15, a flange plate 3 and an armored pipe 4.

[0028] The cable 1 comprises an insulating layer 14, two wires 12 and a plug 11, as shown in Figure 2 The two wires 12 and the plurality of different sensors 13 are located inside the insulating layer 14, the plurality of different sensors 13 and the plug 11 are connected in parallel with each other and are connected in series between the two wires 12, the first end of the two wires 12 is connected to the two ports of one of the sensors 13, the second end of the two wires 12 is connected to the plug 11, and the two ports of the other sensors 13 are also connected to the two wires 12, respectively.

[0029] Further, the tensile steel wire 15 is located inside the insulating layer 14, one end of the tensile steel wire 15 is fixedly connected to the plug 11, and the material of the tensile steel wire 15 is a 0.2mm 2 steel wire rope, which has high tensile strength and good toughness, and can withstand multiple cyclic loads without breaking during repeated stretching and relaxation, and is suitable for use in dynamic load environment. Exemplarily, the material of the two wires 12 is 0.3mm2 The tinned copper wire has good electrical conductivity because copper itself has high conductivity, and after tinning, the electrical conductivity will not be reduced, but the surface anti-oxidation protective layer can ensure that the low resistance characteristics are maintained for a long time, ensuring the high efficiency and stability of power transmission. The material of the insulation layer 14 is 100% virgin high-pressure polyethylene, which has a temperature resistance level of up to 90°C and a short-circuit temperature of about 250°C. Compared with traditional PVC insulation materials (maximum working temperature of 70°C), its performance in high-temperature environments is more stable.

[0030] Referring to Figure 1 and Figure 4 , the measurement and control module 2 includes an explosion-proof housing 21 and a circuit board, the circuit board is fixedly installed inside the explosion-proof housing 21, the circuit board is integrated with a microprocessor and a plurality of interfaces corresponding to different sensors 13, the model of the microprocessor chip is STM32F103C8T6, the surface of the explosion-proof housing 21 is provided with a plurality of slots 22 corresponding to different interfaces, the slots 22 are provided with protective covers that can be buckled, each slot 22 is matched with a plug 11, and each slot 22 is provided with four insertion holes, each plug 11 has four ports that can be respectively embedded, the plug 11 is electrically connected with the corresponding interface when the plug 11 is embedded in the slot 22, the plurality of interfaces are electrically connected with the microprocessor, and the microprocessor is used to receive the environmental data collected by the corresponding sensors 13 through different interfaces and forward the environmental data to the upper computer. The user can embed the plug 11 in the corresponding slot 22 to obtain the environmental data collected by the corresponding sensor 13 on the upper computer.

[0031] Further, the plurality of different sensors 13 include a temperature sensor, a humidity sensor, and a gas concentration sensor. In this embodiment, the environmental data collected by the temperature sensor is the temperature in the coal bunker, the environmental data collected by the humidity sensor is the humidity in the coal bunker, and the environmental data collected by the gas concentration sensor is the carbon monoxide concentration, oxygen concentration, and dust concentration in the coal bunker. Carbon monoxide is a toxic and flammable gas produced during the oxidation of coal powder, and high concentration may cause poisoning accidents and pose an explosion risk. Low oxygen concentration may cause suffocation, and high oxygen concentration may increase the risk of fire. Coal powder may form a dust cloud in the air, which may cause a dust explosion when the concentration reaches a certain level. In order to ensure the safety of the coal bunker environment, it is necessary to monitor and ensure that the concentration of these gases is within a reasonable range. For example, referring to Figure 3 , the plurality of interfaces include 1-WIRE / TTL interfaces, I2C interfaces, and USART / CAN interfaces, and the interfaces are labeled on the corresponding slots 22. Referring to Figure 4As shown, the STM32F103C8T6 microprocessor is connected with these interfaces, and different interfaces can be connected with sensors 13 of corresponding protocols (there are many types of communication protocols for the same type of sensor, and the actual connection needs to select the corresponding interface according to the specific sensor type), in this embodiment, the 1-WIRE / TTL interface corresponds to the temperature sensor, the I2C interface corresponds to the humidity sensor, and the USART / CAN interface corresponds to the gas concentration sensor, that is, when the plug 22 is connected with the slot 22 marked with the 1-WIRE / TTL interface, the host computer can obtain the temperature in the coal bunker; when the plug 22 is connected with the slot 22 marked with the I2C interface, the host computer can obtain the humidity in the coal bunker; when the plug 22 is connected with the slot 22 marked with the USART / CAN interface, the host computer can obtain the carbon monoxide concentration, oxygen concentration and dust concentration in the coal bunker. Further, the circuit board is also integrated with an RS485 interface, the RS485 interface is electrically connected with the microprocessor, and the microprocessor is used to forward the environmental data to the host computer through the RS485 interface. After the microprocessor receives the environmental data of one of the sensors, it will be converted into a differential signal suitable for the RS485 interface, and then the differential signal will be transmitted to the host computer through the RS485 interface in the MODBUS RTU protocol. For example, the material of the explosion-proof shell 21 is a cast aluminum shell, which has high mechanical strength and hardness, can effectively protect the circuit board from external impact and extrusion, and prevent the device from being damaged. Its durability enables it to be used in harsh environments for a long time, and the inside of the explosion-proof shell 21 is encapsulated by epoxy resin, which forms a sealed protective layer after curing, which can effectively prevent moisture and humidity from entering the circuit board, avoiding short circuit or corrosion caused by moisture.

[0032] Referring to Figure 1 As shown, the flange plate 3 is fixedly installed at one end of the armored pipe 4 and internally communicates with the armored pipe 4, the insulation layer 14 is slidingly embedded in the inner wall of the armored pipe 4 and the flange plate 3, and the upper surface of the flange plate 3 is provided with a lock catch for fixing the insulation layer 14. The detection device can be fixed on the specific position (such as the top of the bunker or the bunker wall) of the coal bunker through the flange plate 3, the lock catch can lock the insulation layer 14, one end of the anti-tension steel wire 15 is fixedly connected with the plug 11, the other end of the anti-tension steel wire 15 extends out of one end of the insulation layer 14 and the armored pipe 4 and is welded into a steel wire ring with a larger radius than the caliber of the armored pipe 4, if it is necessary to replace and upgrade the cable 1, first pull out the plug from the slot 22, then open the lock catch on the upper surface of the flange plate 3, and finally hold the steel wire ring, then the whole cable 1 can be pulled out from the lower end of the armored pipe 4. Further, the material of the flange plate 3 is stainless steel, and the armored pipe 4 is made of high-strength steel wire, which is used to protect the cable 1 from being pulled, worn and damaged by sharp objects. In addition, the internal electronic components can be physically isolated by the armored pipe 4, which improves the protection effect.

[0033] In summary, by connecting a plurality of different sensors 13 in series on the two wires 12 in the cable 1 and the plug 11, integrating a microprocessor on the circuit board in the monitoring module 2 and a plurality of interfaces corresponding to different sensors 13 respectively, and providing a plurality of slots 22 corresponding to different interfaces on the surface of the explosion-proof shell 21, the plug 11 can be electrically connected with the corresponding interface when it is embedded in the slot 22. When different environmental data needs to be collected, the corresponding sensor 13 and the interface connected with the sensor are found, the plug 11 is embedded in the slot 22 corresponding to the interface respectively, and the required various environmental data can be collected and sent to the upper computer through the microprocessor. Without additional replacement of the detection device, a plurality of environmental parameters can be detected, the problem that the environmental parameter detection device can only detect one environmental parameter is solved, the difficulty of environmental detection of the coal bunker is reduced, and the safety of the coal bunker environment is ensured.

[0034] The coal bunker multi-environmental parameter monitoring system is also provided in the embodiment, which includes the coal bunker multi-environmental parameter detection device and the upper computer thereof. Because the coal bunker multi-environmental parameter detection device solves the problem that the corresponding cable needs to be replaced when different coal bunker environmental parameters are collected, the coal bunker multi-environmental parameter monitoring system is beneficial to increase the monitoring of the safety of the coal bunker environment and reduce the possibility of safety accidents of the coal bunker.

[0035] It should be noted that each of the above modules can be a functional module or a program module, which can be implemented by software or hardware. For the modules implemented by hardware, each of the above modules can be located in the same processor, or each of the above modules can be located in different processors in any combination.

[0036] It should be understood that the specific embodiments described herein are intended to explain, not limit, the application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0037] Obviously, the drawings are only some examples or embodiments of the present application, and those of ordinary skill in the art can also apply the present application to other similar situations without creative labor. In addition, it can be understood that although the work done in the development process can be complex and long, some design, manufacture or production changes made by those of ordinary skill in the art according to the technical content disclosed in the present application are only routine technical means and should not be regarded as insufficient disclosure of the present application.

Claims

1. A multi-environmental parameter detection device for a coal bunker, characterized in that, include: Multiple different sensors (13) are used to collect different environmental data; The cable (1) includes an insulation layer (14), two conductors (12) and a plug (11). The two conductors (12) and multiple different sensors (13) are located inside the insulation layer (14). The multiple different sensors (13) and the plug (11) are connected in parallel to each other and in series between the two conductors (12). The measurement and control module (2) includes an explosion-proof housing (21) and a circuit board. The circuit board is fixedly installed inside the explosion-proof housing (21). The circuit board integrates a microprocessor and multiple interfaces corresponding to different sensors (13). The surface of the explosion-proof housing (21) is provided with multiple slots (22) corresponding to different interfaces. Each slot (22) is matched with a plug (11). When the plug (11) is inserted into the slot (22), it is electrically connected to the corresponding interface. Multiple interfaces are electrically connected to the microprocessor. The microprocessor is used to receive environmental data collected by the corresponding sensors (13) through different interfaces and forward the environmental data to the host computer.

2. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, Several different sensors (13) include a temperature sensor, a humidity sensor and a gas concentration sensor.

3. The coal bunker multi-environment parameter detection device according to claim 2, characterized in that, Multiple interfaces include a 1-WIRE / TTL interface, an I2C interface, and a USART / CAN interface, corresponding to a temperature sensor, a humidity sensor, and a gas concentration sensor, respectively.

4. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, The circuit board also integrates an RS485 interface, which is electrically connected to the microprocessor. The microprocessor is used to forward environmental data to the host computer through the RS485 interface.

5. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, The coal bunker multi-environment parameter detection device also includes: a flange (3) and an armored pipe (4). The flange (3) is fixedly installed at one end of the armored pipe (4) and is internally connected to the armored pipe (4). The insulation layer (14) is slidably embedded in the inner wall of the armored pipe (4) and the flange (3). The surface of the flange (3) is provided with a latch for fixing the insulation layer (14).

6. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, The cable (1) also includes: a tensile steel wire (15) located inside the insulation layer (14), one end of which is fixedly connected to the plug (11), and the tensile steel wire (15) is made of 0.2mm thick steel. 2 Steel wire rope.

7. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, The explosion-proof enclosure (21) is made of cast aluminum and the interior of the explosion-proof enclosure (21) is sealed with epoxy resin.

8. The coal bunker multi-environment parameter detection device according to claim 1, characterized in that, Both wires (12) are made of 0.3mm² material. 2 The tin-plated copper wire and the insulation layer (14) are made of 100% virgin high-pressure polyethylene.

9. The coal bunker multi-environment parameter detection device according to claim 5, characterized in that, The flange (3) is made of stainless steel, and the armored pipe (4) is made of high-strength steel wire.

10. A multi-environmental parameter monitoring system for a coal bunker, characterized in that, The coal bunker multi-environment parameter detection device and its host computer are included in any one of claims 1-9.

Images