Visual sensing-based high-temperature detection system and method for driving device

Abstract

A visual sensing-based high-temperature detection system for a driving device, comprising a visual sensor (1). A detection lens of the visual sensor (1) faces the driving device; an output end of the visual sensor (1) is electrically connected to a control unit (2), so as to output a detection signal to the control unit (2); an output end of the control unit (2) is electrically connected to a telescoping mechanism (3), and the control unit (2) outputs a control signal to the telescoping mechanism (3) on the basis of the detection signal; a temperature sensor (4) is mounted at a telescoping end of the telescoping mechanism (3), and an output end of the temperature sensor (4) is electrically connected to an output end of the control unit (2). The invention also relates to a high-temperature detection method. The problem that the service life of a temperature sensor (4) is easily reduced, due to long-term contact with a driving device, is solved.

Description

A high-temperature detection system and method for drive equipment based on vision sensing Technical Field

[0001] This invention relates to the technical field of drive equipment testing, and specifically to a high-temperature testing system and method for drive equipment based on vision sensing. Background Technology

[0002] The purpose of the drive equipment is to drive the traction component and working component of a conveyor with flexible traction components, or to drive the working component of a conveyor without traction components.

[0003] When a drive device is working, it generates a significant amount of heat, causing the internal temperature to rise. High temperatures can negatively impact the operation of the drive device and, in severe cases, even shorten its lifespan. The operating time and frequency of the drive device are factors that affect the amount of heat generated. In current technologies, most drive device monitoring involves directly installing temperature sensors inside the drive device to detect the internal temperature. The control system then uses the temperature signal to control appropriate cooling devices to achieve the purpose of cooling the drive device.

[0004] However, since most temperature sensors in the existing technology are directly mounted on the driving device, the temperature sensor is in contact with the driving device for a long time. The driving device generates heat whenever it is working, and the temperature inside the driving device is higher than the room temperature. The temperature sensor is in an environment higher than the room temperature for a long time, and its lifespan will be greatly reduced.

[0005] Summary of the Invention

[0006] To address the aforementioned problem—that prolonged contact between the temperature sensor and the driving device can reduce its lifespan—this invention proposes a high-temperature detection system for driving devices based on vision sensing. The system includes a vision sensor with its detection lens facing the driving device. The output of the vision sensor is electrically connected to a control unit to output a detection signal. The output of the control unit is electrically connected to a telescopic mechanism, which outputs a control signal to the telescopic mechanism based on the detection signal. A temperature sensor is mounted on the telescopic end of the telescopic mechanism, and its output is electrically connected to the output of the control unit.

[0007] A further feature of the present invention is that the control unit is a PLC programmable controller.

[0008] This invention also discloses a high-temperature detection method for a driving device based on visual sensing, employing the above-mentioned detection system and including the following steps:

[0009] The vision sensor acquires the operating frequency of the driving device and transmits the detected operating frequency signal to the control unit.

[0010] The control unit analyzes and calculates the theoretical temperature that can be generated at the corresponding operating frequency based on the frequency signal output by the vision sensor. Then, it compares the theoretical temperature with the threshold temperature. If the theoretical temperature is higher than the threshold temperature, the control unit will output a control signal to the telescopic mechanism to control the telescopic mechanism to work, thereby moving the temperature sensor toward the driving device until it contacts the driving device, thus realizing the detection of the temperature of the driving device. If the theoretical temperature is not higher than the threshold temperature, the control unit will not output a control signal.

[0011] The temperature sensor transmits the detected actual temperature of the drive device to the control unit. The control unit compares the actual temperature signal with the threshold temperature. If the actual temperature is higher than the threshold temperature, the control unit outputs a control signal to the corresponding cooling device to start the cooling device to cool the drive device. If the actual temperature is not higher than the threshold temperature, the control unit does not output a control signal.

[0012] When the actual temperature of the drive device drops below the threshold temperature, the control unit will output a control signal to the telescopic mechanism to start the telescopic mechanism, thereby driving the temperature sensor to move away from the drive device.

[0013] A further provision of the present invention is that the control unit is also electrically connected to a display to display the actual temperature when the temperature sensor detects the driving device.

[0014] The beneficial effects of this invention are as follows:

[0015] By detecting the operating frequency using a visual sensor, it is possible to control whether the temperature sensor is in contact with the driving device based on the theoretical temperature. This avoids the temperature sensor being in constant contact with the driving device and further prevents the temperature sensor from being in contact with an environment higher than room temperature for a long time, thus improving the service life of the temperature sensor. Attached Figure Description

[0016] Figure 1 shows a schematic diagram of the system of the present invention.

[0017] Figure 2 shows the control flow diagram of the method of the present invention.

[0018] Reference numerals: 1. Vision sensor; 2. Control unit; 3. Telescopic mechanism; 4. Temperature sensor. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] Example 1

[0021] This invention proposes a high-temperature detection system for a drive device based on vision sensing. The system includes a vision sensor 1, with its detection lens facing the drive device to detect its operating frequency. The output of the vision sensor 1 is electrically connected to a control unit 2, which is a PLC programmable controller. The vision sensor 1 transmits the detected operating frequency signal of the drive device into the control unit 2. The output of the control unit 2 is electrically connected to a telescopic mechanism 3. Based on the operating frequency signal, the control unit 2 outputs a control signal to the telescopic mechanism 3 to control its operation.

[0022] A temperature sensor 4 is fixedly installed at the telescopic end of the telescopic mechanism 3. The telescopic mechanism 3 can move the temperature sensor 4 toward the driving device, or it can move the temperature sensor 4 away from the driving device.

[0023] The output terminal of the temperature sensor 4 is electrically connected to the input terminal of the control unit 2 to transmit the actual temperature of the drive device detected by the temperature sensor 4 into the control unit 2, so that the control unit 2 can compare the actual temperature with the threshold temperature and then determine whether to activate the cooling device to cool the drive device.

[0024] Example 2

[0025] This embodiment discloses a high-temperature detection method for a driving device based on visual sensing. It employs the detection system disclosed in Embodiment 1 and includes the following steps:

[0026] The vision sensor 1 obtains the operating frequency of the driving device and transmits the detected operating frequency to the control unit 2 in the form of an electrical signal.

[0027] The control unit 2 analyzes and calculates the theoretical temperature that can be generated at the corresponding working frequency based on the frequency signal output by the vision sensor 1. Then, it compares the theoretical temperature value with the threshold temperature. When the theoretical temperature is higher than the threshold temperature, the control unit 2 will output a control signal to the telescopic mechanism 3. The telescopic mechanism 3 starts to work based on the control signal, that is, it drives the temperature sensor 4 to move towards the direction of the driving device until the contact of the temperature sensor 4 contacts the driving device box, thereby realizing the detection of the temperature of the driving device. When the theoretical temperature is not higher than the threshold temperature, the control unit 2 does not output a control signal to the telescopic mechanism 3, and the telescopic mechanism 3 does not work.

[0028] When temperature sensor 4 detects the actual temperature of the drive device, it transmits the detected temperature signal to control unit 2. Control unit 2 analyzes and compares the actual temperature with a threshold temperature. If the actual temperature is higher than the threshold temperature, control unit 2 outputs a control signal to the corresponding cooling device, which then cools the drive device. If the actual temperature is not higher than the threshold temperature, control unit 2 does not output a control signal to the cooling device, and the cooling device does not start.

[0029] When the actual temperature of the drive device drops below the threshold temperature, the control unit 2 will output a control signal to the telescopic mechanism 3 to start the telescopic mechanism 3 to work, thereby driving the temperature sensor 4 to move away from the drive device and detach the temperature sensor 4 from the drive device.

[0030] The control unit 2 is also electrically connected to a display to show the detected real temperature value when the temperature sensor 4 detects the temperature of the drive device.

[0031] It should be noted that the cooling device used in this application is a purchased prior art, and therefore it is not shown or described in detail in the accompanying drawings of this application.

[0032] It should be noted that the calculation of the theoretical temperature is based not only on the operating frequency of the drive device, but also on its time. That is, if the operating frequency of the drive device does not change, the control unit 2 also needs to calculate the theoretical temperature based on the operating frequency and the working time. At this time, if the theoretical temperature is higher than the threshold temperature, the control unit 2 will also output a control signal to the telescopic mechanism 3 to control its operation.

[0033] In summary, by detecting the operating frequency through the visual sensor 1, the present invention can control whether the temperature sensor 4 is in contact with the driving device based on the theoretical temperature, thereby avoiding the temperature sensor 4 from being in constant contact with the driving device, further avoiding the temperature sensor 4 from being in contact with an environment higher than room temperature for a long time, and improving the service life of the temperature sensor 4.

[0034] Although the invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0035] In the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0038] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A high-temperature detection system for a drive device based on vision sensing, characterized in that: The device includes a vision sensor (1) with its detection lens facing the driving device. The output of the vision sensor (1) is electrically connected to a control unit (2) for outputting a detection signal to the control unit (2). The output of the control unit (2) is electrically connected to a telescopic mechanism (3). The control unit (2) outputs a control signal to the telescopic mechanism (3) based on the detection signal. A temperature sensor (4) is installed on the telescopic end of the telescopic mechanism (3). The output of the temperature sensor (4) is electrically connected to the output of the control unit (2).

2. The high-temperature detection system for drive equipment based on vision sensing according to claim 1, characterized in that: The control unit (2) is a PLC programmable controller. A method for high-temperature detection of a driving device based on vision sensing, characterized in that: it employs the detection system described in any one of claims 1-2, and includes the following steps: The vision sensor (1) acquires the operating frequency of the driving device and transmits the detected operating frequency signal to the control unit (2); The control unit (2) analyzes and calculates the theoretical temperature that can be generated at the corresponding working frequency based on the frequency signal output by the vision sensor (1). Then, it compares the theoretical temperature with the threshold temperature. If the theoretical temperature is higher than the threshold temperature, the control unit (2) will output a control signal to the telescopic mechanism (3) to control the telescopic mechanism (3) to work, thereby driving the temperature sensor (4) to move towards the driving device until it contacts the driving device, so as to detect the temperature of the driving device. If the theoretical temperature is not higher than the threshold temperature, the control unit (2) will not output a control signal. The temperature sensor (4) transmits the detected real temperature of the driving device to the control unit (2). The control unit (2) compares and judges the real temperature signal with the actual temperature signal. The threshold temperature is compared. If the actual temperature is higher than the threshold temperature, the control unit (2) outputs a control signal to the corresponding cooling device to start the cooling device to cool the drive device. If the actual temperature is not higher than the threshold temperature, the control unit (2) does not output a control signal. When the actual temperature of the drive device drops below the threshold temperature, the control unit (2) will output a control signal to the telescopic mechanism (3) to start the telescopic mechanism (3) to work, thereby driving the temperature sensor (4) to move away from the drive device.

3. The high-temperature detection method for drive devices based on vision sensing according to claim 3, characterized in that: The control unit (2) is also electrically connected to a display to show the actual temperature when the temperature sensor (4) detects the drive device.

Images