A multifunctional PLC environmental monitoring and control device

Abstract

This utility model provides a multifunctional PLC environmental monitoring and control device, belonging to the field of environmental monitoring. It includes a housing, inside which are installed detection components, control components, and warning components. Through the detection components, temperature, humidity, and light sensors collect environmental data (such as temperature, humidity percentage, and light intensity) in real time. This data is converted into electrical signals and transmitted to the PLC controller. The sensor probes are exposed to the monitoring environment and continuously collect data. The PLC controller scans the sensor inputs every 500ms and updates the data, thereby monitoring the external environment's temperature, humidity percentage, and light intensity in real time.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring, and more specifically, to a multifunctional PLC environmental monitoring and control device. Background Technology

[0002] PLCs are core control devices in the field of industrial automation. They realize logic operations, sequential control, timing, counting and arithmetic operations through digital programming and are widely used in production lines, mechanical equipment, environmental monitoring and other scenarios.

[0003] Traditional environmental monitoring devices have limited functionality and rely on multiple independent systems for monitoring and control, resulting in problems such as low integration, response delay, and poor scalability. While existing PLC control systems can achieve partial automation, they lack multi-parameter collaborative monitoring and cannot meet the needs of complex scenarios. Therefore, a multi-functional PLC environmental monitoring and control device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing traditional environmental monitoring devices, which have limited functionality, rely on multiple independent systems for monitoring and control, and suffer from low integration, response delay, and poor scalability. While existing PLC control systems can achieve partial automation, they lack multi-parameter collaborative monitoring and are unable to meet the needs of complex scenarios. This invention provides a multi-functional PLC environmental monitoring and control device to solve the problems mentioned in the background.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a multi-functional PLC environmental monitoring and control device, including a housing, a detection component, a control component, and an alarm component.

[0007] The detection assembly includes a PLC controller installed inside the housing. The housing contains a temperature sensor, a humidity sensor, and a light sensor. The sensing probes of the temperature sensor, humidity sensor, and light sensor all extend through one side of the housing to the outside of the housing. The temperature sensor, humidity sensor, and light sensor are all electrically connected to the PLC controller. A protective door is hinged to one side of the housing.

[0008] As a preferred technical solution of this utility model, the control component includes a relay installed inside the housing, the relay being electrically connected to the PLC controller, the relay being electrically connected to external lighting equipment and external ventilation equipment, and a communication module being provided inside the housing, the communication module integrating an RS-485 interface and an Ethernet interface.

[0009] As a preferred technical solution of this utility model, the warning component includes a flashing alarm installed at the bottom of the box and an audible alarm installed at the bottom of the box. Both the flashing alarm and the audible alarm are electrically connected to the PLC controller.

[0010] As a preferred technical solution of this utility model, a human-machine interaction display is provided on the top of the housing. The human-machine interaction display is a touch screen display and is electrically connected to the PLC controller.

[0011] As a preferred technical solution of this utility model, a backup battery is provided inside the housing, and the backup battery is electrically connected to the PLC controller.

[0012] As a preferred technical solution of this utility model, a gas concentration sensor is installed inside the box, and the gas concentration sensor is electrically connected to the PLC controller.

[0013] As a preferred technical solution of this utility model, the protective door is provided with an observation window, and the observation window is made of tempered glass.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up detection components, temperature sensors, humidity sensors, and light sensors collect environmental data (such as temperature value, humidity percentage, and light intensity) in real time during use. After being converted into electrical signals, the data is transmitted to the PLC controller. The sensor probes are exposed to the monitoring environment and continuously collect data. The PLC controller scans the sensor inputs every 500ms and updates the data, thereby monitoring the temperature value, humidity percentage, and light intensity of the external environment in real time.

[0016] 2. By setting up control components, the PLC controller processes data according to preset logic (such as triggering ventilation equipment when the temperature is >30℃), and outputs control signals through relays to control the opening and closing of external devices (such as lighting and ventilation) connected by the relays. The RS-485 interface supports the Modbus RTU protocol to connect local sensors or actuators; the Ethernet interface supports the Modbus TCP or MQTT protocol to realize remote data transmission and control. Attached Figure Description

[0017] Figure 1 One of the structural schematic diagrams of the multifunctional PLC environmental monitoring and control device provided by this utility model;

[0018] Figure 2 Schematic diagram 2 of the multifunctional PLC environmental monitoring and control device provided by this utility model;

[0019] Figure 3A schematic diagram of the control component of the multifunctional PLC environmental monitoring and control device provided by this utility model;

[0020] Figure 4 A schematic diagram of the human-machine interface display of the multifunctional PLC environmental monitoring and control device provided by this utility model;

[0021] Figure 5 A schematic diagram of the structure of the warning component of the multifunctional PLC environmental monitoring and control device provided by this utility model.

[0022] The diagram shows: 1. Housing; 2. Detection components; 3. Control components; 4. Warning components; 201. PLC controller; 202. Temperature sensor; 203. Humidity sensor; 204. Light sensor; 206. Protective door; 301. Relay; 302. Communication module; 401. Flashing alarm; 402. Sound alarm; 5. Human-machine interface display; 6. Backup battery; 7. Gas concentration sensor; 8. Observation window. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] like Figure 1 As shown, this embodiment proposes a multifunctional PLC environmental monitoring and control device, including a housing 1, a detection component 2, a control component 3, and an alarm component 4.

[0028] like Figure 3As shown, the detection component 2 includes a PLC controller 201 installed inside the housing 1. The housing 1 contains a temperature sensor 202, a humidity sensor 203, and a light sensor 204. The sensor probes of the temperature sensor 202, humidity sensor 203, and light sensor 204 extend through one side of the housing 1 to the outside. All three sensors are electrically connected to the PLC controller 201. A protective door 206 is hinged to one side of the housing 1. During use, the temperature sensor 202, humidity sensor 203, and light sensor 204 collect environmental data (such as temperature, humidity percentage, and light intensity) in real time, convert it into electrical signals, and transmit it to the PLC controller 201. The sensor probes are exposed to the monitoring environment and continuously collect data. The PLC controller 201 scans the sensor inputs every 500ms and updates the data, thereby monitoring the temperature, humidity percentage, and light intensity of the external environment in real time.

[0029] like Figure 3 As shown, the control component 3 includes a relay 301 installed inside the housing 1. The relay 301 is electrically connected to the PLC controller 201 and to external lighting and ventilation equipment. The housing 1 contains a communication module 302, which integrates an RS-485 interface and an Ethernet interface. In use, the PLC controller 201 processes data according to preset logic (e.g., triggering ventilation equipment when the temperature is >30℃) and outputs control signals through the relay 301 to control the opening and closing of external equipment (e.g., lighting and ventilation) connected by the relay 301. The RS-485 interface supports the Modbus RTU protocol for connecting local sensors or actuators; the Ethernet interface supports the Modbus TCP or MQTT protocol for remote data transmission and control.

[0030] like Figure 5 As shown, the warning component 4 includes a flashing alarm 401 installed at the bottom of the housing 1 and an audible alarm 402 installed at the bottom of the housing 1. Both the flashing alarm 401 and the audible alarm 402 are electrically connected to the PLC controller 201. When in use, the flashing alarm 401 and the audible alarm 402 can alert for abnormal data. When the PLC controller 201 detects abnormal data, it will simultaneously activate the flashing alarm 401 and the audible alarm 402 to provide an alert, thereby improving safety.

[0031] like Figure 4As shown, a human-machine interface display 5 is installed on the top of the housing 1. The human-machine interface display 5 is a touch screen display and is electrically connected to the PLC controller 201. When in use, the human-machine interface display 5 adopts a resistive touch screen. The user modifies the register value of the PLC controller 201 (such as the temperature threshold) through gesture operation (click, swipe). The PLC controller 201 receives the modification instruction and updates the internal register.

[0032] like Figure 3 As shown, the housing 1 is equipped with a backup battery 6, which is electrically connected to the PLC controller 201. When the mains power is normal, the backup battery 6 is automatically charged through the charging circuit. When the mains power is interrupted, the switching circuit immediately switches to battery power to avoid the loss of PLC controller 201 program or interruption of environmental parameter recording due to power failure.

[0033] like Figure 3 As shown, a gas concentration sensor 7 is installed inside the housing 1. The gas concentration sensor 7 is electrically connected to the PLC controller 201. When in use, the gas concentration sensor 7 can detect the gas concentration in the external environment.

[0034] like Figure 4 As shown, the protective door 206 is equipped with an observation window 8, which is made of tempered glass. When the equipment is being maintained, the maintenance personnel can directly see the inside of the enclosure 1 through the observation window 8, reducing the equipment downtime and the risk of dust intrusion caused by frequent door opening.

[0035] Specifically, in use, this multi-functional PLC environmental monitoring and control device uses: temperature sensor 202, humidity sensor 203, and light sensor 204 to collect environmental data (such as temperature, humidity percentage, and light intensity) in real time. This data is converted into electrical signals and transmitted to the PLC controller 201. The sensor probes are exposed to the monitoring environment and continuously collect data. The PLC controller 201 scans the sensor inputs every 500ms and updates the data, thereby monitoring the external environment's temperature, humidity percentage, and light intensity in real time (e.g., temperature, humidity percentage, and light intensity). Figure 2 As shown), the PLC controller 201 processes data according to preset logic (e.g., triggering ventilation equipment when the temperature is >30℃), and outputs control signals through relay 301 to control the opening and closing of external devices (e.g., lighting, ventilation) connected by relay 301. The RS-485 interface supports the Modbus RTU protocol for connecting local sensors or actuators; the Ethernet interface supports the Modbus TCP or MQTT protocol for remote data transmission and control (e.g., ...). Figure 3 (As shown).

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A multifunctional PLC environment monitoring and control device, comprising a box body (1), characterized in that, The box (1) is equipped with a detection component (2), a control component (3), and a warning component (4). The detection component (2) includes a PLC controller (201) installed inside the housing (1). The housing (1) is equipped with a temperature sensor (202), a humidity sensor (203), and a light sensor (204). The sensing probes of the temperature sensor (202), humidity sensor (203), and light sensor (204) extend through one side of the housing (1) to the outside of the housing (1). The temperature sensor (202), humidity sensor (203), and light sensor (204) are all electrically connected to the PLC controller (201). A protective door (206) is hinged to one side of the housing (1).

2. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, The control component (3) includes a relay (301) installed inside the housing (1), the relay (301) being electrically connected to the PLC controller (201), the relay (301) being electrically connected to external lighting equipment and external ventilation equipment, and a communication module (302) being installed inside the housing (1), the communication module (302) integrating an RS-485 interface and an Ethernet interface.

3. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, The warning component (4) includes a flashing alarm (401) installed at the bottom of the housing (1) and a sound alarm (402) installed at the bottom of the housing (1). Both the flashing alarm (401) and the sound alarm (402) are electrically connected to the PLC controller (201).

4. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, The top of the housing (1) is provided with a human-machine interaction display (5), which is a touch screen display and is electrically connected to the PLC controller (201).

5. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, The housing (1) is equipped with a backup battery (6), which is electrically connected to the PLC controller (201).

6. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, A gas concentration sensor (7) is installed inside the housing (1), and the gas concentration sensor (7) is electrically connected to the PLC controller (201).

7. The multifunctional PLC environmental monitoring and control device according to claim 1, characterized in that, The protective door (206) is provided with an observation window (8), which is made of tempered glass.

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