Multi-point temperature detection system based on industrial personal computer

Abstract

The utility model provides a multipoint temperature detection system based on an industrial personal computer, which comprises a plurality of temperature acquisition points, a wireless gateway, an industrial personal computer, a display screen and a mobile phone terminal, the plurality of temperature acquisition points are in communication connection with the industrial personal computer through the wireless gateway, and the industrial personal computer is in communication connection with the display screen and the mobile phone terminal; each temperature acquisition point comprises a monitoring point processor, and a thermal infrared sensor, an image sensor, a Hall electromagnetic sensor, a storage module, an alarm module, a power supply module, a wireless communication module and a display module which are electrically connected with the monitoring point processor. According to the utility model, the infrared sensor is adopted to carry out non-contact temperature measurement, so that a tedious wiring procedure is avoided, the installation cost and difficulty are greatly reduced, and the flexibility and efficiency of system deployment are improved. In combination with a Hall electromagnetic sensor, the position of a cable and other electrified objects can be accurately detected, normal operation heating of equipment, line aging heating and interference of other external heat sources are effectively distinguished, and the misjudgment condition of temperature anomaly judgment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of temperature acquisition technology, specifically a multi-point temperature detection system based on an industrial control computer. Background Technology

[0002] Traditional temperature detection methods suffer from numerous inconveniences and limitations. Previous methods often relied on manual, individual measurements or wired sensor networks. Manual measurement is not only inefficient but also makes it difficult to achieve real-time, continuous monitoring of multiple points, failing to meet the temperature detection needs of large-scale or complex environments.

[0003] While wired sensor networks can achieve a certain degree of automated monitoring, they face significant challenges in terms of cabling. This is especially true in large industrial sites, complex buildings, or outdoor environments, where cabling is cumbersome, costly, and requires substantial manpower, resources, and time. Furthermore, cable installation is limited by environmental factors; for example, in existing buildings, space constraints or structural limitations may make cabling difficult.

[0004] Furthermore, traditional detection systems typically only measure temperature data, lacking comprehensiveness in assessing abnormal temperatures. They cannot effectively distinguish whether the abnormal temperature is caused by heat generated during normal equipment operation, aging wiring, or interference from other external heat sources. This leads to misjudgments or the overlooking of potential safety hazards in practical applications.

[0005] With the continuous development of science and technology and the increasing level of industrial automation, the demand for a temperature detection system that can achieve high efficiency, accuracy, remote operation and multi-functionality is becoming more and more urgent. The multi-point temperature detection system based on industrial control computer of this utility model was developed to solve these problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a multi-point temperature detection system based on an industrial control computer, so as to overcome the shortcomings of the prior art described in the background.

[0007] To solve the above-mentioned technical problems, the embodiments of this utility model provide the following technical solution: a multi-point temperature detection system based on an industrial control computer, including multiple temperature acquisition points, a wireless gateway, an industrial control computer, a display screen, and a mobile terminal. The multiple temperature acquisition points are connected to the industrial control computer through the wireless gateway, and the industrial control computer is connected to the display screen and the mobile terminal.

[0008] The temperature acquisition point includes a monitoring point processor and a thermal infrared sensor, an image sensor, a Hall electromagnetic sensor, a storage module, an alarm module, a power supply module, a wireless communication module, and a display module electrically connected to the monitoring point processor.

[0009] Preferably, the wireless gateway is a LoRa wireless gateway, a 4G / 5G wireless gateway, or a Zigbee wireless gateway.

[0010] Preferably, the monitoring point processor uses an STM32F765 chip.

[0011] Preferably, the thermal infrared sensor is a digital infrared sensor with the MLX90614 chip as its core.

[0012] Preferably, the image sensor is an OV2640 high-definition camera module.

[0013] Preferably, the Hall electromagnetic sensor is a YS-27 / 3144E Hall sensor.

[0014] Preferably, the alarm module is an audible and visual alarm.

[0015] Preferably, the wireless communication module is a LoRa wireless communication module, a 4G / 5G wireless communication module, or a Zigbee wireless communication module.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] 1. This utility model uses infrared sensors for non-contact temperature measurement at the on-site temperature acquisition point, avoiding cumbersome wiring procedures. This has significant advantages in scenarios such as large industrial sites, complex buildings, or outdoor environments, greatly reducing installation costs and difficulty, improving the flexibility and efficiency of system deployment, and enabling the rapid establishment of a temperature monitoring network.

[0018] 2. This utility model, combined with a Hall effect electromagnetic sensor, can accurately detect the location of energized items such as cables, enabling precise monitoring of equipment circuit temperature. Through comparative analysis, it effectively distinguishes between heat generated during normal equipment operation, heat generated by circuit aging, and interference from other external heat sources, reducing misjudgments of abnormal temperature readings, enhancing the ability to identify potential safety hazards, and ensuring the safe and stable operation of equipment.

[0019] 3. This utility model is equipped with an image sensor, which can monitor the object under test in real time and take pictures when the temperature is abnormal. It provides staff with intuitive image information of the parts with excessive temperature, helps to quickly locate the fault point, facilitates timely and targeted maintenance measures, and improves the fault diagnosis efficiency of the system. Attached Figure Description

[0020] Figure 1 This is a block diagram illustrating the principle of the multi-point temperature detection system based on an industrial computer according to this utility model.

[0021] Figure 2This is a block diagram illustrating the principle of temperature acquisition points in the multi-point temperature detection system based on an industrial computer according to this utility model.

[0022] Figure 3 This is a schematic diagram of the thermal infrared sensor circuit of the multi-point temperature detection system based on an industrial control computer according to this utility model. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, this utility model proposes a multi-point temperature detection system based on an industrial control computer, including multiple temperature acquisition points 1, a wireless gateway 2, an industrial control computer 3, a display screen 4, and a mobile terminal 5. The multiple temperature acquisition points 1 are connected to the industrial control computer 3 through the wireless gateway 2, and the industrial control computer 3 is connected to the display screen 4 and the mobile terminal 5.

[0025] like Figure 2 As shown, temperature acquisition point 1 includes a monitoring point processor 11 and a thermal infrared sensor 12, an image sensor 13, a Hall electromagnetic sensor 14, a storage module 15, an alarm module 16, a power supply module 17, a wireless communication module 18, and a display module 19, all electrically connected to the monitoring point processor 11.

[0026] Among them, wireless gateway 2 can be a LoRa wireless gateway, a 4G / 5G wireless gateway, or a Zigbee wireless gateway. The wireless gateway is used to centrally collect the temperature data of the location, equipment, and items collected by each temperature collection point 1 and transmit it to the industrial control computer for centralized monitoring.

[0027] The monitoring point processor 11 uses the STM32F765 chip, which is a 32-bit microprocessor based on the ARM Cortex-M7 core. It integrates 512KB SRAM, has a main clock frequency of up to 216MHz, and has a double-precision floating-point unit (DPFPU). Its processing speed is much faster than traditional 8-bit and 16-bit machines. In addition, it also has a dedicated DCMI interface for communication with the camera, which meets the needs of this utility model for the acquisition, processing and transmission of video image data, temperature data and electromagnetic force data.

[0028] The thermal infrared sensor 12 is a digital infrared sensor based on the MLX90614 chip. Its main principle is to measure the temperature of an object by detecting its infrared radiation. The MLX90614 converts the thermal infrared radiation within its field of view into a current signal, which is then read from its internal RAM by an external processor to obtain the actual measured temperature. Its specific circuit is as follows... Figure 3As shown. The sensor is powered by an external 3.3V power supply. The MLX90614 has an internal 32-bit readable RAM and a 32-bit writable EPPROM. When powered on, the MLX90614 stores the measured data in the RAM. In addition to the power supply pins VCC and GND, there are also bidirectional data lines SDA and clock lines SCL.

[0029] Image sensor 13 uses an OV2640 high-definition camera module. The OV2640 can directly output JPEG format images. The OV2640 transmits image data to the MCU via the DCMI bus. The DCMI bus uses parallel transmission and can receive data streams up to 54MB / s, making it suitable for the needs of image acquisition and video monitoring of abnormal areas in this utility model.

[0030] The Hall electromagnetic sensor 14 uses the YS-27 / 3144E Hall sensor, which is specifically designed to detect live items such as cables that are carrying current and to distinguish them from other heat sources.

[0031] Alarm module 16 is an audible and visual alarm, used to issue an on-site alarm when excessively high temperatures are detected.

[0032] The wireless communication module 18 can be a LoRa wireless communication module, a 4G / 5G wireless communication module, or a Zigbee wireless communication module. It corresponds to the wireless gateway 2; for example, if the wireless gateway is a LoRa wireless gateway, then a LoRa wireless communication module is used.

[0033] This invention utilizes an infrared sensor to non-contactly measure object temperature at the on-site temperature acquisition point, avoiding the complexities of wiring. Since temperature monitoring is frequently applied to electrical equipment, this invention further incorporates a Hall effect electromagnetic sensor to accurately locate the position of internal wires, monitor the temperature of the wiring, assess wiring aging, and differentiate from interference from other heat sources. Simultaneously, a visible light sensor provides real-time monitoring of the object under test and captures images of areas with abnormal temperatures, allowing for a more intuitive identification of areas with excessively high temperatures.

[0034] Temperature data collected from each on-site temperature acquisition point is transmitted to the corresponding gateway via LoRa wireless communication, 4G / 5G wireless communication, or Zigbee wireless communication. The gateway then transmits the data to the industrial control computer for centralized monitoring. These communication methods all enable long-distance communication, making this invention suitable for temperature monitoring and communication over a wide area.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A multi-point temperature detection system based on an industrial control computer, characterized in that, It includes multiple temperature acquisition points (1), a wireless gateway (2), an industrial computer (3), a display screen (4), and a mobile terminal (5). The multiple temperature acquisition points (1) are connected to the industrial computer (3) through the wireless gateway (2), and the industrial computer (3) is connected to the display screen (4) and the mobile terminal (5). The temperature acquisition point (1) includes a monitoring point processor (11) and a thermal infrared sensor (12), an image sensor (13), a Hall electromagnetic sensor (14), a storage module (15), an alarm module (16), a power supply module (17), a wireless communication module (18), and a display module (19) electrically connected to the monitoring point processor (11).

2. The multi-point temperature detection system based on an industrial control computer according to claim 1, characterized in that, The wireless gateway (2) is a LoRa wireless gateway, a 4G / 5G wireless gateway, or a Zigbee wireless gateway.

3. The multi-point temperature detection system based on an industrial computer according to claim 1, characterized in that, The monitoring point processor (11) uses an STM32F765 chip.

4. The multi-point temperature detection system based on an industrial control computer according to claim 1, characterized in that, The thermal infrared sensor (12) is a digital infrared sensor with the MLX90614 chip as its core.

5. The multi-point temperature detection system based on an industrial computer according to claim 1, characterized in that, The image sensor (13) is an OV2640 high-definition camera module.

6. The multi-point temperature detection system based on an industrial control computer according to claim 1, characterized in that, The Hall electromagnetic sensor (14) is a YS-27 / 3144E Hall sensor.

7. The multi-point temperature detection system based on an industrial computer according to claim 1, characterized in that, The alarm module (16) is an audible and visual alarm.

8. The multi-point temperature detection system based on an industrial control computer according to claim 1, characterized in that, The wireless communication module (18) is a LORA wireless communication module, a 4G / 5G wireless communication module, or a Zigbee wireless communication module.

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