Infrared thermal image acquisition device and system

Abstract

The invention provides an infrared thermal image acquisition device which comprises an infrared temperature detection module, a wireless communication module, a control module and an external power supply interface. Wherein the infrared temperature detection module is used for collecting infrared temperature data of a target object; the wireless communication module is used for providing a data transmission channel; the control module is electrically connected with the infrared temperature detection module and the wireless communication module; the external power supply interface can be connected with an external power supply to supply power to the infrared thermal image acquisition device; the control module and the wireless communication module establish a wireless local area network and provide a network server. The invention also provides an infrared thermal image acquisition system which comprises an external power supply, external equipment and the infrared thermal image acquisition device. The infrared thermal image acquisition device has the beneficial effects that the infrared thermal image acquisition device is few in components, small in size, low in peripheral requirement, wide in application scene, diversified in application, simple in system building and convenient to use and operate.

Description

Technical Field

[0001] The invention relates to the field of infrared temperature data acquisition, and in particular to an infrared thermal image acquisition device and system. Background Art

[0002] If the surface temperature of an object exceeds absolute zero, it will radiate electromagnetic waves. As the temperature changes, the radiation intensity and wavelength distribution characteristics of the electromagnetic waves also change accordingly. Electromagnetic waves with wavelengths between 0.75μm and 1000μm are called "infrared rays."

[0003] Since the size of the thermal radiation energy of an object (i.e. the wavelength of infrared light) is directly related to the temperature of the object's surface, infrared thermal imaging technology has been developed, which uses a special electronic device to measure the distribution of thermal radiation energy on the surface of an object, corresponding to the temperature distribution on the surface of the object, and then converting it into an image visible to the human eye, and displaying the temperature distribution on the surface of the object in different colors. This electronic device is called an infrared thermal imager.

[0004] Infrared thermal imagers have been expanding into civilian and industrial fields in recent years. After decades of continuous development, infrared thermal imagers have evolved from a bulky machine to a lightweight, portable device for field testing. However, the integrated test equipment is still relatively expensive compared to the growing demand for infrared thermal imagers by ordinary individuals.

[0005] In the prior art, various infrared thermal imaging devices with high cost performance and easy operation are constantly emerging. For example, there is an infrared thermometer that is used as a mobile phone accessory and is plugged into the mobile phone for use. A dedicated application is installed on the mobile phone, making the mobile phone the main bearer of processing and displaying temperature distribution images, thereby reducing the overall cost of use. The disadvantage of this infrared thermometer is that it must be used with a mobile phone and a dedicated application must be installed on the mobile phone before it can be used, which has limitations in the use scenario. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a new infrared thermal image acquisition device and system to solve the problems that are indispensable to mobile phones and proprietary applications in the prior art.

[0007] In order to achieve the above-mentioned object and other related objects, the present invention provides an infrared thermal image acquisition device, comprising: Infrared temperature detection module, used to collect infrared temperature data of the target object; A wireless communication module, used for providing a data transmission channel; A control module, electrically connected to the infrared temperature detection module and the wireless communication module, and controlling the operation of the infrared thermal imaging acquisition device through built-in control software, including generating infrared thermal imaging data; An external power supply interface, which can be connected to an external power supply to supply power to the infrared thermal imaging acquisition device; Wherein, the control module and the wireless communication module form a wireless local area network and provide a network service terminal.

[0008] In some embodiments of the present invention, the control process of the infrared thermal imaging acquisition device includes: S11: The external power supply interface is connected to an external power source to provide power for the infrared thermal imaging acquisition device; S12 the infrared temperature detection module, the control module and the wireless communication module enter a working state; S13: When the server receives an infrared thermal image reading request from the outside and delivered through the wireless local area network, the control software reads infrared temperature data from the infrared temperature detection module, generates infrared thermal image data, and transmits it through the wireless local area network.

[0009] In some embodiments of the present invention, the external power supply interface is a USB-C interface.

[0010] In some embodiments of the present invention, the external power supply interface is a USB-C plug or a USB-C socket.

[0011] In some embodiments of the present invention, the VBUS and GND pins of the USB-C interface provide power for the infrared thermal imaging acquisition device.

[0012] In some embodiments of the present invention, the wireless communication module is a WiFi module.

[0013] In some embodiments of the present invention, the control module and the wireless communication module are combined into one, which is a microprocessor controller with a built-in WiFi module.

[0014] In some embodiments of the present invention, the server uses a preset HTTP interface to implement parameter settings of the infrared thermal imaging acquisition device and the transmission of the infrared thermal imaging data.

[0015] Another aspect of the present invention also provides an infrared thermal imaging acquisition system, including an external power supply, an external device and the infrared thermal imaging acquisition device in the above-mentioned embodiment; the external power supply matches the external power supply interface of the infrared thermal imaging acquisition device; the external device includes a wireless local area network access module, a client and a display device, the wireless local area network access module connects the external device to the wireless local area network of the infrared thermal imaging acquisition device, the client matches the server of the infrared thermal imaging acquisition device, receives the infrared thermal imaging data from the server and displays it on the display device.

[0016] In some embodiments of the present invention, the control process of the infrared thermal imaging acquisition system includes: S21: the external power supply is inserted into the external power supply interface of the infrared thermal imaging acquisition device; S22 the infrared thermal imaging acquisition device enters a working state; S23 the external device is connected to the wireless local area network of the infrared thermal imaging acquisition device; S24, the client requests real-time infrared thermal imaging data from the server; S25 the server sends the real-time infrared thermal image data acquired by the infrared thermal image acquisition device to the client; S26 The client displays the received real-time infrared thermal image data on the display device.

[0017] As described above, the infrared thermal imaging acquisition device and system of the present invention have the following beneficial effects: the infrared thermal imaging acquisition device has few components, small size, low peripheral requirements, wide application scenarios, diverse applications, simple system construction, and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings describe in detail the exemplary embodiments disclosed in the present application. The same reference numerals represent similar structures in several views of the drawings. It should be understood by those skilled in the art that the drawings are not drawn to scale and are only used for the purpose of illustration and description and are not intended to limit the scope of the present application.

[0019] Figure 1 Shown is a schematic diagram of the structure of an infrared thermal image acquisition device in an embodiment of the present invention.

[0020] Figure 2 Shown is a schematic diagram of a power supply circuit of an infrared thermal imaging acquisition device in an embodiment of the present invention.

[0021] Figure 3 Shown is a schematic diagram of the architecture of an infrared thermal image acquisition system in an embodiment of the present invention. Description of symbols 100-infrared thermal imaging acquisition device; 200-external equipment. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied by other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present invention are to describe specific specific embodiments, rather than to limit the scope of protection of the present invention. Without departing from the spirit and scope of the present application, the general principles defined herein can be applied to other embodiments and applications. Therefore, the present application is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0023] refer to Figure 1 As shown, the present invention provides an infrared thermal imaging acquisition device 100, including an infrared temperature detection module, a wireless communication module, a control module and an external power supply interface. Among them, the infrared temperature detection module is used to collect infrared temperature data of the target object. The wireless communication module is used to provide a data transmission channel. The control module is electrically connected to the infrared temperature detection module and the wireless communication module, and controls the operation of the infrared thermal imaging acquisition device 100 through the built-in control software (not shown), including the generation of infrared thermal imaging data. The external power supply interface can be connected to an external power supply to power the infrared thermal imaging acquisition device 100. In particular, in the infrared thermal imaging acquisition device 100 of the present invention, the control module and the wireless communication module form a wireless local area network (WLAN) and provide a network server (Server).

[0024] Specifically, the infrared temperature detection module converts the collected infrared radiation energy on the surface of the target object into electrical signals, then amplifies and filters these electrical signals, and then calculates the temperature data of the surface of the target object based on the corresponding relationship between the radiation energy and temperature of the object surface. The parameters of the infrared temperature detection module include infrared resolution, field of view, lens focal length, focusing method, temperature measurement range, temperature measurement accuracy and detection distance. In some embodiments, for different application scenarios, infrared temperature detection modules with different parameter combinations can be selected to achieve high cost performance by making the best use of them.

[0025] The wireless communication module plays the role of a data transmission channel in the present invention, and can be a WiFi module, or a Bluetooth module or other hardware module that can realize wireless communication, so as to be used for data transmission between the infrared thermal imaging acquisition device 100 and an external device. In some embodiments of the present invention, a WiFi module is preferably used.

[0026] The control module is responsible for the overall operation of the infrared thermal imaging acquisition device 100, and is electrically connected to the infrared temperature detection module and the wireless communication module. The control module has a built-in embedded control software, which controls the infrared temperature detection module and the wireless communication module respectively to realize the functions of the infrared thermal imaging acquisition device 100 of the present invention. Specifically, in terms of acquiring infrared thermal images, the control software reads the detected real-time infrared temperature data from the infrared temperature detection module when necessary, and then converts it into data suitable for imaging. The data can be in a variety of forms. In some embodiments, the control software processes the infrared temperature data into Raw Data (unconverted data) of a specific data structure for use by applications with special needs. In other embodiments, the control software processes the infrared temperature data into image files in a standard format that can be directly displayed, such as JPG files, PNG files, etc.

[0027] The infrared thermal imaging acquisition device 100 of the present invention does not have its own image display device, and the infrared thermal image is displayed by an external device, which can reduce the size of the device, reduce the number of components, and thus reduce the cost. The external device can be a commonly used and readily available device, and will not affect the use of the infrared thermal imaging acquisition device 100. For example, a mobile phone can be used as an external device for use with the infrared thermal imaging acquisition device 100. The setting of the external device responsible for displaying the infrared thermal image involves the data transmission requirements of the infrared thermal imaging data from the infrared thermal imaging acquisition device 100 to the external device, and there can be multiple solutions. For example, one of the solutions can be that two devices that need to transmit data to each other are connected to the same local area network to achieve data transmission; another solution can be that the two devices are point-to-point connected to achieve data transmission. In particular, the present invention adopts a "master-slave" network architecture, and the control module of the infrared thermal imaging acquisition device 100 uses a wireless communication module to form an independent and complete wireless local area network (WLAN) and set up a server (Server). Therefore, the infrared thermal imaging acquisition device 100 is the "master" device, and the external device is the "slave" device. The client (Client) on the "slave" device can establish a connection with the server (Server) on the "master" device to exchange data. In this way, the infrared thermal imaging acquisition device 100 of the present invention can create a wireless local area network anytime and anywhere without the help of an external network, for external devices to access and complete the transmission of infrared thermal imaging data. The setting of the wireless local area network enables the infrared thermal imaging acquisition device 100 of the present invention to adapt to various external environments, and can still run smoothly even without any external network or special environments such as caves and underground. At the same time, the external devices that cooperate with the infrared thermal imaging acquisition device 100 can also be diverse, as long as they have the ability to access the wireless local area network. For example, mobile phones of various systems, mobile computers of various systems, etc. all have this capability.

[0028] In some embodiments, the control process of the infrared thermal imaging acquisition device 100 includes: S11: the external power supply interface is connected to an external power supply to provide power for the infrared thermal imaging acquisition device 100; S12 infrared temperature detection module, control module and wireless communication module enter working state; S13 When the server receives an infrared thermal image reading request from the outside and sent through the wireless local area network, the control software reads the infrared temperature data from the infrared temperature detection module, generates infrared thermal image data, and transmits it through the wireless local area network.

[0029] The external power supply interface provides access to an external power supply. A commonly used and readily available power supply can be selected, without the need to equip the infrared thermal imaging acquisition device 100 of the present invention with a special power supply, which reduces the total cost while increasing portability. Commonly used hardware interfaces for powering electronic products include standard USB and USB-C (also known as USB Type-C), among which USB-C supports forward and reverse blind plugging, can provide 5V, 9V, 15V or 20V voltage to the outside, and can provide a maximum power of 100W. It is being used more and more widely and rapidly popularized. Therefore, as a preferred embodiment of the present invention, the external power supply interface adopts USB-C.

[0030] The USB-C interface standard defines the specifications of the plug (also known as the male plug) and the socket (also known as the female socket). The plug and the socket are used together to complete the connection between different devices. In some embodiments, the external power supply interface adopts a plug type. In other embodiments, the external power supply interface adopts a socket type. In this way, the infrared thermal imaging acquisition device 100 of the present invention provides flexibility in adaptation. As long as there is a USB-C interface at the site of use, whether it is a plug type or a socket type, there is always one that can be used. Alternatively, the user can select an infrared thermal imaging acquisition device 100 of the corresponding interface type based on the existing USB-C type device on hand.

[0031] As can be seen from the above, the infrared thermal imaging acquisition device 100 of the present invention has wide adaptability. As long as there is a USB-C connection cable, an external power supply can be provided in combination with a charger or a mobile phone; mobile phones and computers with USB-C interfaces can also provide external power supplies. Any electronic device with a USB-C interface can be a provider of external power.

[0032] refer to Figure 2 As shown in the power circuit schematic diagram, the pins VBUS and GND of the USB-C interface provide power for the infrared thermal imaging acquisition device 100. Figure 2 (a) is a schematic diagram of a circuit of a USB-C plug type in some embodiments, Figure 2 (b) is a schematic diagram of a USB-C socket type circuit in some embodiments. Figure 2 (c) The USB-C interface can provide 3.3V and 5V power for the infrared thermal imaging acquisition device 100. Specifically, in some embodiments, refer to Figure 2 As shown in (a), the CC pin of the USB-C plug is grounded (GND), and the VBUS pin input is 5V; in some embodiments, reference Figure 2 As shown in (b), the CC1 pin and CC2 pin of the USB-C socket are both grounded (GND), and the VBUS pin input is 5V. Figure 2 As shown in (c), VBUS is connected to 5VIN through fuse FU1 to provide 5V power to related components, and at the same time provides 3.3V power to related components through voltage conversion.

[0033] Furthermore, in some embodiments, the control module and the wireless communication module are combined into one, which is a microprocessor control unit (MCU) with a built-in wireless communication module. In some embodiments, a microprocessor control unit with a built-in WiFi module is preferred, for example, an MCU with a built-in general Wi-Fi module, a 4MB embedded flash, and a RISC-V 32-bit single-core processor can meet the functional requirements of the infrared thermal imaging acquisition device 100 of the present invention.

[0034] In some embodiments, the server of the infrared thermal imaging acquisition device 100 provides an HTTP interface (API, Application Interface), which realizes the parameter setting of the infrared thermal imaging acquisition device 100 and the transmission of infrared thermal imaging data through preset (i.e., defined by the server) interface parameters. In addition to acquiring infrared thermal imaging data, various parameters of the infrared thermal imaging acquisition device 100 can also be set for customization. The advantage of the HTTP interface is the availability of the client, and all browsers support HTTP. By entering the preset interface address and parameters in the browser of the external device connected to the wireless local area network of the infrared thermal imaging acquisition device 100, the real-time infrared thermal image detected by the infrared thermal imaging acquisition device 100 can be easily displayed without the need for an additional dedicated application (Application).

[0035] refer to Figure 3As shown, the present invention also provides an infrared thermal imaging acquisition system, including an external power supply, an external device 200 and the infrared thermal imaging acquisition device 100 in the above embodiment; the external power supply matches the external power supply interface of the infrared thermal imaging acquisition device 100; the external device 200 includes a wireless local area network access module, a client and a display device, the wireless local area network access module connects the external device 200 to the wireless local area network of the infrared thermal imaging acquisition device 100, the client matches the server of the infrared thermal imaging acquisition device 100, receives infrared thermal imaging data from the server and displays it on the display device.

[0036] The external power source and the external device 200 may be integrated, or may be unrelated and independent of each other.

[0037] In some embodiments, the control process of the infrared thermal imaging acquisition system includes: S21: insert the external power supply into the external power supply interface of the infrared thermal imaging acquisition device 100; S22 the infrared thermal imaging acquisition device 100 enters a working state; S23 the external device 200 is connected to the wireless local area network of the infrared thermal image acquisition device 100; The S24 client requests real-time infrared thermal imaging data from the server; S25 The server sends the real-time infrared thermal image data acquired by the infrared thermal image acquisition device 100 to the client; The S26 client displays the received real-time infrared thermal image data on a display device.

[0038] In some embodiments, the client is a web browser. By inputting a preset (i.e., defined by the server) infrared thermal image acquisition IP address and parameters in the address bar of the web browser, the infrared thermal image can be displayed on the display device.

[0039] In some embodiments, the client is a dedicated application (App) that implements various advanced applications after acquiring infrared thermal imaging data from the infrared thermal imaging acquisition device 100, providing unlimited possibilities for future development.

[0040] In some embodiments, the client is a parameter setting and customization tool for the infrared thermal imaging acquisition device 100 .

[0041] In some embodiments, there may be multiple external devices 200 in the infrared thermal imaging acquisition system, that is, multiple different external devices 200 may be connected to the same infrared thermal imaging acquisition apparatus 100 at the same time to realize different applications after acquiring infrared thermal imaging data.

[0042] In summary, the infrared thermal imaging acquisition device and system of the present invention is based on the infrared temperature detection module, wireless communication module and control module. Through the external power supply interface, wireless local area network and server, the external power supply is available everywhere. The system is simple to build and easy to use. It can be used even in remote areas without communication signals or in special environments such as caves and underground. It achieves the minimum number of components, the minimum volume, the minimum peripheral requirements, the widest application scenarios, the simplest user operation and the diversification of applications. Therefore, the present invention is superior to the existing technology in all aspects and has a high industrial utilization value.

[0043] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained. Certain features, structures or characteristics in one or more embodiments of the present application may be appropriately combined.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An infrared thermal image acquisition device, characterized in that: The infrared thermal image acquisition device comprises: Infrared temperature detection module, used to collect infrared temperature data of the target object; A wireless communication module, used for providing a data transmission channel; A control module, electrically connected to the infrared temperature detection module and the wireless communication module, and controlling the operation of the infrared thermal imaging acquisition device through built-in control software, including generating infrared thermal imaging data; An external power supply interface, which can be connected to an external power supply to supply power to the infrared thermal imaging acquisition device; Wherein, the control module and the wireless communication module form a wireless local area network and provide a network service terminal.

2. The infrared thermal image acquisition device according to claim 1, characterized in that: The control process of the infrared thermal imaging acquisition device includes: S11: The external power supply interface is connected to an external power source to provide power for the infrared thermal imaging acquisition device; S12 the infrared temperature detection module, the control module and the wireless communication module enter a working state; S13: When the server receives an infrared thermal image reading request from the outside and delivered through the wireless local area network, the control software reads infrared temperature data from the infrared temperature detection module, generates infrared thermal image data, and transmits it through the wireless local area network.

3. The infrared thermal image acquisition device according to claim 1, characterized in that: The external power supply interface is a USB-C interface.

4. The infrared thermal image acquisition device according to claim 3, characterized in that: The external power supply interface is a USB-C plug or a USB-C socket.

5. The infrared thermal image acquisition device according to claim 4, characterized in that: The pins VBUS and GND of the USB-C interface provide power for the infrared thermal imaging acquisition device.

6. The infrared thermal image acquisition device according to claim 1, characterized in that: The wireless communication module is a WiFi module.

7. The infrared thermal image acquisition device according to claim 6, characterized in that: The control module and the wireless communication module are combined into one, which is a microprocessor controller with a built-in WiFi module.

8. The infrared thermal image acquisition device according to claim 1, characterized in that: The server uses a preset HTTP interface to implement parameter settings of the infrared thermal imaging acquisition device and the transmission of the infrared thermal imaging data.

9. An infrared thermal image acquisition system, characterized in that: The infrared thermal imaging acquisition system includes an external power supply, an external device and the infrared thermal imaging acquisition device according to any one of claims 1 to 8; the external power supply matches the external power supply interface of the infrared thermal imaging acquisition device; the external device includes a wireless local area network access module, a client and a display device, the wireless local area network access module connects the external device to the wireless local area network of the infrared thermal imaging acquisition device, the client matches the server of the infrared thermal imaging acquisition device, receives the infrared thermal imaging data from the server and displays it on the display device.

10. The infrared thermal image acquisition system according to claim 9, characterized in that: The control process of the infrared thermal imaging acquisition system includes: S21: the external power supply is inserted into the external power supply interface of the infrared thermal imaging acquisition device; S22 the infrared thermal imaging acquisition device enters a working state; S23 the external device is connected to the wireless local area network of the infrared thermal imaging acquisition device; S24, the client requests real-time infrared thermal imaging data from the server; S25 the server sends the real-time infrared thermal image data acquired by the infrared thermal image acquisition device to the client; S26 The client displays the received real-time infrared thermal image data on the display device.

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