Industrial signal transmission cable connection device

Abstract

The present invention relates to the technical field of cable connection devices, and in particular to an industrial signal transmission cable connection device. The device includes a cable connection device body, which also includes a cable connection detection module. The cable connection detection module includes: a pressure sensor module, a cable connection detection processor, and a cable connection alarm mechanism; the pressure sensor module is used to collect the pressure value of the pressure sensor in each pressure sensor group; the cable connection detection processor is used to analyze and process the stability of the cable connection; and the cable connection alarm mechanism is used to alarm the cable connection device. The present invention improves the accuracy of stability detection of the cable connection device.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection devices, and in particular to an industrial signal transmission cable connection device. Background Art

[0002] With the rapid development of industrial automation and intelligent manufacturing, signal transmission cables are increasingly used in the industrial field. These cables are not only used to transmit power, but also to transmit various signals. However, the reliability of cable connections directly affects the stability and safety of the entire system. Therefore, the reliability of cable connection devices becomes particularly important.

[0003] In the existing technology, the connection stability of the cable connection device is mainly guaranteed by the mechanical structure. However, during long-term use, the cable connection device may become loose due to mechanical vibration, temperature change and other factors, affecting the stability of signal transmission. Most cable connection devices do not have a connection stability detection device, which makes it difficult to monitor in real time when the cable connection device has an unstable connection.

[0004] Currently, it is common that some cable connection devices install one or more miniature pressure sensors inside the connection device, and judge the connection stability by the pressure data of a single miniature sensor or the average pressure data of multiple miniature pressure sensors. However, the stability of the cable connection device is determined only by the average value of the pressure data, and the judgment error of the connection stability of the connection device is relatively large, and there is a large distortion in the reflection of the actual connection effect of the connection device. Summary of the invention

[0005] In order to solve the technical problem that the stability of the cable connection device is determined only by the mean value of the pressure data, and the judgment error of the connection stability of the connection device is large, the purpose of the present invention is to provide an industrial signal transmission cable connection device, and the technical solution adopted is as follows:

[0006] In a first aspect, an embodiment of the present invention provides an industrial signal transmission cable connection device, comprising a cable connection device body, the cable connection device body further comprising a cable connection detection module, the cable connection detection module comprising: a pressure sensor module, a cable connection detection processor and a cable connection alarm mechanism;

[0007] The signal output end of the pressure sensor module is connected to the signal input end of the cable connection detection processor, and the signal output end of the cable connection detection processor is connected to the signal input end of the cable connection alarm mechanism, and the cable connection alarm mechanism is used to alarm the cable connection device;

[0008] The pressure sensor module is used to collect the pressure values ​​of the pressure sensors in each pressure sensor group and output the pressure values ​​to the cable connection detection processor;

[0009] The cable connection detection processor is used to determine the pressure value corresponding to each pressure sensor group according to the pressure value of the pressure sensor in each pressure sensor group; compare the pressure value difference between two pressure sensor groups on the same guide rail at the same time to determine the rail pressure difference; analyze the positional relationship between different guide rails and the gravity direction to determine the pressure change of the connection terminal in the gravity direction; map the pressure change to the inclination angle of the cable connection device under the reference pressure when the reference connection is stable; and determine the stability of the cable connection device according to the inclination angle;

[0010] Outputting an alarm instruction to the cable connection alarm mechanism according to the stability is used to alarm the cable connection device.

[0011] Further, the analyzing the positional relationship between different guide rails and the direction of gravity to determine the pressure change of the connection terminal in the direction of gravity includes:

[0012] Each cable connection device includes three guide rails, and a corresponding rail pressure difference is determined for each guide rail;

[0013] The positional relationship between different guide rails and the direction of gravity is analyzed, and a pressure change acquisition model is established. The pressure change acquisition model is used to obtain the pressure change of the connecting terminal in the direction of gravity. The pressure change acquisition model is:

[0014] ;

[0015] in, is the minimum rail pressure difference among the guide rails of the same cable; is the maximum rail pressure difference among the guide rails of the same cable; is the pressure difference of another guide rail in the guide rail of the same cable except the minimum and maximum guide rail pressure differences; It is the angle formed by the direction of the conductor's center pointing to the guide rail below the cable connection terminal and the horizontal downward gravity direction; is the pressure change.

[0016] Furthermore, mapping the pressure variation to the tilt angle of the cable connection device under the reference pressure when the reference connection is stable includes:

[0017] Under the reference pressure when the reference connection is stable, the pressure change is mapped to the tilt angle of the cable connection device through trigonometric functions.

[0018] Furthermore, mapping the pressure variation to the tilt angle of the cable connection device through trigonometric functions includes:

[0019] The ratio of the pressure change as the numerator and twice the reference pressure as the denominator is used as the independent variable of the inverse sine function, and the result value calculated by the inverse sine function is used as the inclination angle of the cable connecting device.

[0020] Furthermore, the method for obtaining the reference pressure when the reference connection is stable is: obtaining a time period that satisfies a stability condition, and taking the average of the pressure values ​​obtained by the pressure sensor corresponding to the time period that satisfies the stability condition as the reference pressure.

[0021] Furthermore, the time period that satisfies the stability condition is:

[0022] The rail pressure difference of the three guide rails on the same cable is less than the preset pressure difference threshold, and the continuous time for which the rail pressure difference is less than the preset pressure difference threshold exceeds the preset stabilization time period.

[0023] Further, determining the stability of the cable connection device according to the tilt angle includes:

[0024] The absolute value of the difference between the preset stable direction angle and the tilt angle is normalized, and the normalized result value is used as the stability of the cable connection device.

[0025] Further, determining the pressure value corresponding to each pressure sensor group according to the pressure value of the pressure sensor in each pressure sensor group includes:

[0026] Each pressure sensor group is composed of a plurality of pressure sensors;

[0027] Calculate the average of the pressure values ​​corresponding to the pressure sensor within the time range corresponding to the current moment as the pressure equilibrium value of the pressure sensor at the current moment;

[0028] The average of the pressure equilibrium values ​​of the pressure sensors belonging to the same pressure sensor group is used as the pressure value of the corresponding pressure sensor group.

[0029] Further, the comparing the pressure value difference of two pressure sensor groups on the same guide rail at the same time to determine the rail pressure difference includes:

[0030] Two pressure sensor groups are installed on each guide rail, respectively installed on the outside and inside of the connection port;

[0031] The difference between the pressure values ​​of the pressure sensor group installed on the inner side of the connection port and the pressure sensor group installed on the outer side of the connection port in the same guide rail is calculated as the guide rail pressure difference.

[0032] Further, the outputting an alarm instruction to the cable connection alarm mechanism according to the stability includes:

[0033] When the stability is lower than a preset alarm threshold, the cable connection detection processor outputs an alarm instruction to the cable connection alarm mechanism.

[0034] In a second aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, wherein the memory stores executable code, and when the processor executes the executable code, various possible implementation embodiments of the first aspect are implemented.

[0035] In a third aspect, an embodiment of the present invention provides a computer program product, which includes: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0036] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute various possible implementations of the first aspect.

[0037] The embodiments of the present invention have at least the following beneficial effects:

[0038] According to the characteristic that the connection terminals of a cable connection device are affected by gravity due to loose connection caused by deformation of a mechanical device during long-term use, the present invention installs a pressure sensor module at a specific position of a guide device of the cable connection device, analyzes the data collected by the pressure sensor module to determine whether the current connection device is affected by gravity, analyzes the positional relationship between different guide rails in the guide device and the direction of gravity to obtain the pressure change, and then maps the size of the inclination angle. The larger the inclination angle, the worse the stability of the cable connection device, thereby reflecting the stability of the cable connection device through the inclination angle. Compared with traditional devices that only use the mean of a single pressure data to judge stability, the present invention no longer uses a separate pressure data threshold for stability judgment, but instead obtains more accurate connection characteristics by analyzing the changes in data obtained by the pressure sensor module, thereby making a more accurate judgment on the stability of the cable connection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A structural diagram of an industrial signal transmission cable connection device provided by one embodiment of the present invention;

[0041] Figure 2 A schematic diagram of a guide device provided by an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of the position distribution of the pressure sensor module on the guide device provided by one embodiment of the present invention;

[0043] Figure 4 A flowchart of a method for analyzing and processing a cable connection detection processor in an industrial signal transmission cable connection device provided by an embodiment of the present invention;

[0044] Figure 5 A schematic diagram showing inclinations at two connection ends of a cable connection device provided by an embodiment of the present invention;

[0045] Figure 6 A schematic diagram of the positional relationship of three guide rails provided in one embodiment of the present invention;

[0046] Figure 7 A schematic diagram of the positional relationship between each guide rail and the direction of gravity provided by an embodiment of the present invention;

[0047] Figure 8 A schematic diagram of the structure of a computer device provided by an embodiment of the present invention;

[0048] Fig. 9 A flow chart of a method for obtaining stability of a cable connection device provided by one embodiment of the present invention;

[0049] In the figure, 1-rotating fixed ring, 2-guide rod, 3-conductor, 4-guide rail, 5-insulating sleeve, 6-insulating tail sleeve, 7-cable, 8-pressure sensor group. DETAILED DESCRIPTION

[0050] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation method, structure, characteristics and effects of an industrial signal transmission cable connection device proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0051] In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0052] Among them, in the description of the embodiments of the present invention, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a way to describe the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, "multiple" refers to two or more than two.

[0053] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0054] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0055] The embodiment of the present invention provides an industrial signal transmission cable connection device including a cable connection device body, the cable connection device body also includes a cable connection detection module, the cable connection detection module includes: a pressure sensor module, a cable connection detection processor and a cable connection alarm mechanism; the cable connection detection processor is used to detect and analyze the stability of the cable connection. Among them, the pressure sensor modules are all connected to the cable connection detection processor, the cable connection detection processor is used for data processing, the chip type is FPGA, it receives the data collected by the pressure sensor module, and controls the cable connection alarm mechanism.

[0056] The signal output end of the pressure sensor module is connected to the signal input end of the cable connection detection processor, and the signal output end of the cable connection detection processor is connected to the signal input end of the cable connection alarm mechanism, and the cable connection alarm mechanism is used to alarm the cable connection device. The pressure sensor module includes a plurality of pressure sensor groups, each of which includes a plurality of pressure sensors, which are used to collect pressure data at different positions in the cable connection device and output it to the cable connection detection processor.

[0057] The following is a detailed description of a specific solution of an industrial signal transmission cable connection device provided by the present invention in conjunction with the accompanying drawings. A person skilled in the art will appreciate that with the development of technology and the emergence of new scenarios, the technical solution provided by the embodiment of the present invention is also applicable to similar technical problems.

[0058] See also Figure 1, which shows the structural diagram of an industrial signal transmission cable connection device provided by an embodiment of the present invention. The cable connection device body includes: a rotary fixing ring 1, a guide rod 2, a conductor 3, a guide rail 4, an insulating sleeve 5, an insulating tail sleeve 6, and a cable 7. In the embodiment of the present invention, a guiding device and a cable connection detection module are added to the traditional cable connection device. Among them, the guiding device includes a guide rod 2 and a guide rail 4, that is, the guiding device is composed of a guide rod 2 and a guide rail 4, which is a guide rod 2 with three guide rails 4. The three guide rails 4 are evenly distributed on the outside of the guide rod 2 to assist in the connection guiding of the cable connection device.

[0059] The cable connection detection module distributes a contact pressure sensor group at specific positions of the guiding device, and judges the stability of the cable connection device by detecting the relationship between the pressures of different pressure sensor modules.

[0060] Among them, the guiding device is mainly composed of a guide rod 2 distributed around the conductor 3 and three guide rails 4 evenly distributed on its outside. Please refer to Figure 2 , Figure 2 which is a schematic diagram of the guiding device.

[0061] When connecting the cable connection device, first align the connection ports of the two connectors, then rotate one of the connection ports, align the three guide rails 4 outside the guide rod 2 with the sliding grooves of the connector, and then connect the cable connection device.

[0062] The pressure sensor module in the cable connection detection module is mainly composed of contact pressure sensors distributed at specific positions of the guiding device. Different contact pressure sensor groups are installed on the guiding device to obtain the pressure data at different positions of the guide rails in the guiding device. Please refer to Figure 3 , Figure 3 which is a schematic diagram of the position distribution of the pressure sensor module on the guiding device. Figure 3 In it, 8 is the pressure sensor group, 2 is the guide rod, and 4 is the guide rail. It should be noted that Figure 3 the one corresponding to the upper mark 8 in it is a pressure sensor group, Figure 3 the one corresponding to the lower mark 8 in it is also a pressure sensor group. The pressure sensor module is composed of two pressure sensor groups.

[0063] Three guide rails 4 are evenly distributed on the outside of the guide rod 2. One pressure sensor group is distributed at each end of each guide rail 20 mm inward. Each pressure sensor group is composed of three contacts, and the three contacts are arranged in a "pin" shape. Each contact is a pressure sensor.

[0064] Please refer to Figure 4, which shows a flow chart of a method for analyzing and processing the stability of a cable connection by a cable connection detection processor in an industrial signal transmission cable connection device provided by an embodiment of the present invention, the method comprising the following steps:

[0065] Step S100, determining the pressure value corresponding to each pressure sensor group according to the pressure value of the pressure sensor in each pressure sensor group; comparing the pressure value difference of two pressure sensor groups on the same guide rail at the same time to determine the rail pressure difference.

[0066] First, the pressure sensor groups on the guide rail 4 are numbered to obtain the pressure sensor groups , where i represents the number of the guide rail, and its number value is 1, 2, and 3; j represents the position of the pressure sensor group on the guide rail, and its value is 1, 2. When j=1, it means that the pressure sensor group is outside the connection port of the guide rail, and when j=2, it means that the pressure sensor group is inside the connection port of the guide rail. In the embodiment of the present invention, the signal sampling frequency of each pressure sensor in the pressure sensor group is set to 100 Hz, that is, the signal sampling frequency of each contact of the pressure sensor group is 100 Hz, and the sampled data of each contact in each pressure sensor group is preprocessed to obtain the preprocessed pressure value.

[0067] Get the pressure sensor groups collected by the pressure sensor module The data collection data sequence of the cth pressure sensor .

[0068] Since the sampling frequency of the pressure sensor in this device is 100 Hz, the above data sequence is divided into a pressure value sequence every 100 data points starting from the first data point. ,in It can be understood that for the current moment, the current moment is taken as the nth element in the data sequence, including the current moment, and 99 pressure value data are obtained forward to form the pressure value sequence corresponding to the current moment.

[0069] Each pressure value sequence corresponding to each moment The average value of all pressure values ​​in is calculated as the pressure equilibrium value measured by the current sensor contact at each moment ; That is, to calculate the average of the pressure values ​​corresponding to the pressure sensor within the time range corresponding to the current moment as the pressure balance value of the pressure sensor at the current moment. Among them, the time is in seconds, and the time range is to obtain the pressure values ​​within the previous 99 seconds (s) including the current moment as the pressure value within the time range corresponding to the current moment.

[0070] Each pressure sensor group contains 3 contacts, that is, each pressure sensor group contains 3 pressure sensors, and the average value of the pressure balance values ​​measured by the 3 pressure sensors is calculated as the pressure value measured by the current pressure sensor group. .

[0071] So far, each pressure sensor group has been obtained Measured pressure value data series ,in, Indicates that at the first moment, the pressure sensor group Corresponding pressure value; Indicates that at the second moment, the pressure sensor group Corresponding pressure value; Indicates the pressure sensor group at the tth moment Corresponding pressure value, pressure value data sequence The time interval between each element is 1s.

[0072] Since the cable connection device is connected and fixed by a mechanical device, during long-term use, the cable connection device may become loose due to factors such as mechanical vibration and temperature changes, thereby affecting the stability of signal transmission.

[0073] When the connection of the connecting device is stable, the pressure applied to various parts of the guiding device in the connecting device is close and stable; when the connection of the connecting device is loose, it is often because the mechanical device has produced mechanical deformation during long-term use, resulting in poor stability of the connection. At this time, a large amount of free space will appear in the mechanical device at the connection of the connecting device. These free spaces will cause changes in the pressure at various parts of the guiding device in the cable connecting device.

[0074] When the difference in pressure values ​​between the two sensor groups on the same guide rail 4 of the cable connection device is larger, it means that the space redundancy inside the connection device is larger, and at this time, the connection stability of the cable connection device is worse.

[0075] Therefore, first calculate the pressure difference between the pressure sensor groups on each guide rail. It can be seen that each guide rail is equipped with two pressure sensor groups, which are installed on the outside and inside of the connection port respectively. Get the two pressure sensor groups on the i-th guide rail and ,in Indicates the pressure sensor group outside the connection port, Indicates the pressure sensor group inside the connection port.

[0076] The difference between the pressure values ​​of the pressure sensor group installed on the inner side of the connection port and the pressure sensor group installed on the outer side of the connection port in the same guide rail is calculated as the guide rail pressure difference.

[0077] As some optional embodiments, when calculating the rail pressure difference, each pressure sensor group can first be Pressure data series Perform mean filtering with a window size of 3 to avoid noise interference.

[0078] Calculate the rail pressure difference of two pressure sensor groups on the same guide rail at the same time:

[0079]

[0080] in, Indicates the pressure sensor group The pressure value at the tth moment; Indicates the pressure sensor group The pressure value at the tth moment; It represents the rail pressure difference of the i-th rail at the t-th moment.

[0081] So far, the rail pressure difference of the two pressure sensor groups of each guide rail at each time is obtained: The greater the rail pressure difference, the greater the free space at the device connection, the greater the inclination angle of the connector of the cable connector, and the worse the connection stability of the cable connector.

[0082] Step S200, analyzing the positional relationship between different guide rails and the direction of gravity, and determining the pressure change of the connection terminal in the direction of gravity.

[0083] When the cable connector is deformed and there is empty space inside the connection device, it will fall downward due to gravity, resulting in an inclination between the two connection ends of the cable connection device. Figure 5 , Figure 5 Schematic diagram of the inclination of the two connection ends of the cable connection device.

[0084] Since the pressure sensor group is distributed on the three guide rails of the guide rod, and the three guide rails are evenly distributed on the outside of the guide rod, the pressure difference on the three guide rails is caused by the inclination angle between the two connecting ends of the cable connecting device. Therefore, when the cable connector connection is unstable, the pressure changes on different guide rails are different, and this pressure change is related to the position of the guide rails.

[0085] Although the pressure changes of the three guide rails are different, the three guide rails are evenly distributed on the outside of the guide rod. Therefore, the positions of the three guide rails in space can be judged based on the rail pressure difference of the pressure sensor group and the positional relationship between different guide rails, so as to correct the pressure change and quantify the inclination angle of the cable connection device caused by gravity, so as to calculate the connection stability of the cable more accurately.

[0086] First, the rail pressure difference of the two pressure sensor groups of any guide rail at each time is obtained. For example, for the i-th guide rail, the rail pressure difference corresponding to the two pressure sensor groups at the t-th time is obtained. That is, each cable connection device includes three guide rails, and a corresponding guide rail pressure difference is determined for each guide rail.

[0087] Although the position of each guide rail in space is unknown, the relative position relationship between the three guide rails is known. Figure 6 , Figure 6 Schematic diagram of the positional relationship of the three guide rails.

[0088] The pressure difference of each guide rail is caused by the tilt of the connection terminal of the cable connection transposition, and the pressure difference caused by the tilt of the connection terminal is related to the spatial position of the guide rail. When the guide rail is in the upper part of the connection terminal, the pressure difference on the guide rail is a positive value; when the guide rail is in the lower half of the connection terminal, the pressure difference on the guide rail is a negative value; at the same time, the greater the absolute value of the pressure difference on the guide rail, the closer it is to the bottom of the connecting terminal. When the guide rail is directly below the connecting terminal, the pressure difference on the guide rail is negative and has the largest absolute value.

[0089] The pressure difference on the i-th guide rail at the t-th moment Arrange them in order from small to large, and record them as ,at this time is the pressure difference of the rail closest to the bottom of the connection terminal, is the pressure difference on the rail closest to the top of the connection terminal. Assume The angle between the center of the conductor pointing to the first guide rail and the direction of gravity (vertically downward) is , see Figure 7 , Figure 7 Schematic diagram of the positional relationship between each guide rail and the direction of gravity.

[0090] The positional relationship between different guide rails and the direction of gravity is analyzed, and a pressure change acquisition model is established. The pressure change acquisition model is used to obtain the pressure change of the connecting terminal in the direction of gravity. The pressure change acquisition model is:

[0091] ;

[0092] in, is the minimum rail pressure difference among the guide rails of the same cable; is the maximum rail pressure difference among the guide rails of the same cable; is the pressure difference of another guide rail in the guide rail of the same cable except the minimum and maximum guide rail pressure differences; It is the angle formed by the direction of the conductor's center pointing to the guide rail below the cable connection terminal and the horizontal downward gravity direction; cos is the cosine function; is the pressure change. This pressure change is the pressure change of the connecting terminal in the vertical direction.

[0093] By solving equations and optimizing, the pressure variation of the connecting terminal in the vertical direction that best conforms to the above relationship is obtained. , that is, to obtain the pressure change in the vertical direction of the connecting terminal that best matches the pressure change acquisition model , the pressure change at this time That is, it indicates the pressure difference formed by the connecting terminal guide rod in the direction of gravity.

[0094] The pressure variation DP formed by the guide rod of the connection terminal in the direction of gravity is obtained. The greater the pressure variation, the greater the inclination angle of the connection terminal during connection; the greater the inclination angle, the greater the deformation degree of the cable connection device, and the worse the connection stability. Therefore, the connection stability of the cable connection device can be calculated by the pressure variation DP.

[0095] Step S300, mapping the pressure change to an inclination angle of the cable connection device under a reference pressure when the reference connection is stable; and determining the stability of the cable connection device according to the inclination angle.

[0096] The pressure variation reflects to a certain extent the inclination angle of the connection terminal on the cable connection device during connection, and reflects to a certain extent the degree of deformation of the cable connection device. When the degree of deformation is greater, the corresponding stability of the cable connection device is worse. Therefore, in the embodiment of the present invention, the pressure variation is first mapped to the inclination angle of the cable connection device, and then the stability of the cable connection device is determined according to the inclination angle.

[0097] In some possible implementations, the stability of the cable connection device is finally obtained, that is, the above step S300 can be performed by Fig. 9 The following steps S310 to S320 are implemented as shown:

[0098] Step S310, mapping the pressure variation to a tilt angle of the cable connection device under a reference pressure when the reference connection is stable.

[0099] Under the reference pressure when the reference connection is stable, the pressure change is mapped to the tilt angle of the cable connection device through trigonometric functions. More specifically, the ratio of the pressure change as the numerator and twice the reference pressure as the denominator is used as the independent variable of the inverse sine function, and the result value calculated by the inverse sine function is used as the tilt angle of the cable connection device.

[0100] The calculation formula for the tilt angle is:

[0101] ;

[0102] in, is the tilt angle; is the inverse sine function; is the pressure change; is the reference pressure.

[0103] In some embodiments, the method for obtaining the reference pressure is: obtaining a time period that satisfies the stability condition, and taking the average of the pressure values ​​obtained by the pressure sensor corresponding to the time period that satisfies the stability condition as the reference pressure. The time period that satisfies the stability condition is: the rail pressure difference of the three guide rails on the same cable is less than the preset pressure difference threshold, and the continuous time of the rail pressure difference less than the preset pressure difference threshold exceeds the preset stability time. In the embodiment of the present invention, the preset pressure difference threshold is 0.05kPa, and the preset stability time is 10s. In other embodiments, the implementer can adjust the value according to the actual situation.

[0104] That is, find the time period in the historical pressure value data in which the rail pressure differences on the three rails are all less than 0.05 kPa and are continuous for more than 10 seconds, and calculate the average value of the pressures read by all sensors in these time periods as the reference pressure.

[0105] In other embodiments, the reference pressure may also be directly set by the implementer based on empirical values.

[0106] Step S320: determining the stability of the cable connection device according to the tilt angle.

[0107] The larger the tilt angle, the greater the deformation of the cable connection device, and the worse the stability of the connection. Therefore, the tilt angle is normalized to obtain the stability of the connection. More specifically, the absolute value of the difference between the preset stable direction angle and the tilt angle is normalized, and the normalized result value is used as the stability of the cable connection device. In the embodiment of the present invention, the preset stable direction angle is , converted into an angle value, that is, 90°, and the method for normalizing the data is a linear normalization algorithm. It should be noted that since the obtained tilt angle is a radian value, when the stability of the cable connection device is subsequently calculated, the preset stable direction angle is also a radian value. When the calculated tilt angle is a radian value, the corresponding preset stable direction angle is set to a radian value; when the calculated tilt angle is an angle value, the corresponding preset stable direction angle is also set to an angle value.

[0108] The value of the stability reflects the stability of the cable connection device. The larger the value of the stability is, the more stable the corresponding cable connection device is. The smaller the value of the stability is, the more unstable the corresponding cable connection device is.

[0109] As an embodiment of the present invention, the calculation formula for the stability of the cable connection device is:

[0110] ;

[0111] in, For the stability of the cable connection device; is the normalization function; is the tilt angle.

[0112] Finally, after the stability is obtained through steps S100 to S300, an alarm instruction is output to the cable connection alarm mechanism according to the stability, so as to alarm the cable connection device.

[0113] During the implementation process, the stability of the connection device is calculated once every 1 minute (min). When the stability of the cable connection device is less than the preset alarm threshold, that is, when the stability of the cable connection device is lower than the preset alarm threshold, the cable connection detection processor outputs an alarm instruction to the cable connection alarm mechanism. That is, when the stability of the connection device is less than the preset alarm threshold, it is considered that the connection of the cable connection device is no longer reliable. At this time, an alarm message is sent through the detection system and other identity information such as the number of the current connection device is attached for rapid positioning. In the embodiment of the present invention, the preset alarm threshold is 0.3. In other embodiments, it can be set by the implementer according to the actual situation. When the implementer has strict requirements on the stability of the cable connection, the preset alarm threshold can be appropriately increased. Otherwise, the preset alarm threshold can be appropriately reduced.

[0114] Optionally, the transmission medium may be a wired link, such as but not limited to coaxial cable, optical fiber, and digital subscriber line, or a wireless link, such as but not limited to Wireless Fidelity (WIFI), Bluetooth, and mobile device network.

[0115] It should be noted that: the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device is divided into different functional modules to complete all or part of the functions described above. In addition, the shopping guide device provided in the above embodiment and the image extension method embodiment belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0116] Figure 8 is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention. Figure 8 As shown, the computer device 800 includes: a memory 810, a processor 820, and a computer program 830 stored in the memory 810 and running on the processor 820, wherein when the processor 820 executes the computer program 830, the computer device can execute any one of the industrial signal transmission cable connection devices introduced above.

[0117] In addition, an embodiment of the present invention also protects a device, which may include a memory and a processor, wherein the memory stores executable program code, and the processor is used to call and execute the executable program code to execute an industrial signal transmission cable connection device provided by an embodiment of the present invention.

[0118] The embodiment of the present invention can divide the functional modules of the device according to the above method example. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0119] In the case of dividing each module according to each function, the device may also include a signal uploading module, a determining module, an adjusting module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0120] It should be understood that the device provided in the embodiment of the present invention is used to implement the above-mentioned industrial signal transmission cable connection device, and thus can achieve the same effect as the above-mentioned implementation method.

[0121] In the case of an integrated unit, the device may include a processing module and a storage module. When the device is applied to a device, the processing module may be used to control and manage the actions of the device. The storage module may be used to support the device to execute mutual program codes, etc. The processing module may be a processor or a controller, which may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module may be a memory.

[0122] In addition, the device provided in an embodiment of the present invention may specifically be a chip, a component or a module, and the chip may include a connected processor and a memory; wherein the memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute an industrial signal transmission cable connection device provided in the above embodiment.

[0123] An embodiment of the present invention also provides a computer-readable storage medium, which stores computer program code. When the computer program code runs on a computer, the computer executes the above-mentioned related method steps to implement an industrial signal transmission cable connection device provided by the above embodiment.

[0124] An embodiment of the present invention further provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement an industrial signal transmission cable connection device provided in the above embodiment.

[0125] Among them, the device, computer-readable storage medium, computer program product or chip provided in the embodiments of the present invention are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here. Through the description of the above implementation methods, technicians in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways.

[0126] The device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. There may be other divisions in actual implementation. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0127] It should also be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0128] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0129] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0130] The above contents are only specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered within the protection scope of the present invention.

Claims

1. An industrial signal transmission cable connection device, comprising a cable connection device body, the cable connection device body comprising a guide device, the guide device comprising a guide rail and a guide rod, three guide rails are evenly distributed on the outer side of the guide rod, characterized in that: The cable connection device body also includes a cable connection detection module, which includes: a pressure sensor module, a cable connection detection processor and a cable connection alarm mechanism; two pressure sensor groups are installed on each guide rail; The signal output end of the pressure sensor module is connected to the signal input end of the cable connection detection processor, and the signal output end of the cable connection detection processor is connected to the signal input end of the cable connection alarm mechanism, and the cable connection alarm mechanism is used to alarm the cable connection device; The pressure sensor module is used to collect the pressure values ​​of the pressure sensors in each pressure sensor group and output the pressure values ​​to the cable connection detection processor; The cable connection detection processor is used to determine the pressure value corresponding to each pressure sensor group according to the pressure value of the pressure sensor in each pressure sensor group; compare the pressure value difference of two pressure sensor groups on the same guide rail at the same time to determine the rail pressure difference; analyze the positional relationship between different guide rails and the gravity direction to determine the pressure change of the cable connection device body in the gravity direction; map the pressure change to the inclination angle of the cable connection device under the reference pressure when the reference connection is stable; and determine the stability of the cable connection device according to the inclination angle; Outputting an alarm instruction to the cable connection alarm mechanism according to the stability, so as to alarm the cable connection device; The pressure variation acquisition method is as follows: for each guide rail, the corresponding guide rail pressure difference is determined; the positional relationship between different guide rails and the gravity direction is analyzed, and a pressure variation acquisition model is established. The pressure variation acquisition model is used to obtain the pressure variation of the cable connection device body in the gravity direction. The pressure variation acquisition model is: ； in, is the minimum rail pressure difference among the guide rails of the same cable; is the maximum rail pressure difference among the guide rails of the same cable; is the pressure difference of another guide rail in the guide rail of the same cable except the minimum and maximum guide rail pressure differences; The angle is the angle formed by the direction of the guide rail below the cable connection device body, where the center of the conductor points to the cable, and the horizontal downward gravity direction; is the pressure change.

2. The industrial signal transmission cable connection device according to claim 1, characterized in that: The step of mapping the pressure variation to the tilt angle of the cable connection device under the reference pressure when the reference connection is stable includes: Under the reference pressure when the reference connection is stable, the pressure change is mapped to the tilt angle of the cable connection device through trigonometric functions.

3. The industrial signal transmission cable connection device according to claim 2, characterized in that: Mapping the pressure variation to the tilt angle of the cable connection device through trigonometric functions includes: The ratio of the pressure change as the numerator and twice the reference pressure as the denominator is used as the independent variable of the inverse sine function, and the result value calculated by the inverse sine function is used as the inclination angle of the cable connecting device.

4. The industrial signal transmission cable connection device according to claim 1, characterized in that: The method for obtaining the reference pressure when the reference connection is stable is: obtaining a time period that meets the stability condition, and taking the average of the pressure values ​​obtained by the pressure sensor corresponding to the time period that meets the stability condition as the reference pressure.

5. The industrial signal transmission cable connection device according to claim 4, characterized in that: The time period that meets the stability condition is: The rail pressure difference of the three guide rails on the same cable is less than the preset pressure difference threshold, and the continuous time for which the rail pressure difference is less than the preset pressure difference threshold exceeds the preset stabilization time period.

6. The industrial signal transmission cable connection device according to claim 1, characterized in that: Determining the stability of the cable connection device according to the tilt angle includes: The absolute value of the difference between the preset stable direction angle and the tilt angle is normalized, and the normalized result value is used as the stability of the cable connection device.

7. The industrial signal transmission cable connection device according to claim 1, characterized in that: The step of determining the pressure value corresponding to each pressure sensor group according to the pressure value of the pressure sensor in each pressure sensor group includes: Each pressure sensor group is composed of a plurality of pressure sensors; Calculate the average of the pressure values ​​corresponding to the pressure sensor within the time range corresponding to the current moment as the pressure equilibrium value of the pressure sensor at the current moment; The average of the pressure equilibrium values ​​of the pressure sensors belonging to the same pressure sensor group is used as the pressure value of the corresponding pressure sensor group.

8. The industrial signal transmission cable connection device according to claim 1, characterized in that: The step of outputting an alarm instruction to the cable connection alarm mechanism according to the stability comprises: When the stability is lower than a preset alarm threshold, the cable connection detection processor outputs an alarm instruction to the cable connection alarm mechanism.

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