Optical transmission sensor device, sensor monitoring system and detection method

Abstract

The present invention provides an optical transmission sensor device, a sensor monitoring system and a detection method, including a plug fixing sleeve, a limit assembly, a magnetic unit and an optical transmission member, wherein both ends of the plug fixing sleeve are open and the plug fixing sleeve is suitable for being fixedly connected to a mounting seat of a part to be detected; the limit assembly is arranged in the plug fixing sleeve; the magnetic unit is detachably arranged at one end of the plug fixing sleeve and abuts against the limit assembly, the magnetic unit is suitable for magnetically connecting with the part to be detected, and a light reflecting member is fixedly arranged on the side of the magnetic unit facing the limit assembly; wherein, an optical transmission member is also included, the optical transmission member passes through the plug fixing sleeve and the limit assembly in sequence and is arranged relative to the light reflecting member to transmit optical signal information related to the relative position of the part to be detected and the mounting seat of the part to be detected. In the above manner, the present invention can improve the detection efficiency and accuracy of the position information between the part to be detected and the mounting seat of the part to be detected.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an optical transmission sensor device, a sensor monitoring system and a detection method. Background Art

[0002] Mechanical mechanisms such as reed switches and push switches have the advantages of low price, simple installation, and easy implementation of detection circuits. They are widely used, especially in scenarios such as detecting the movement or positioning of objects.

[0003] However, for both reed switches and push switches, metal wires need to be laid and electrically connected to metal contacts to work properly. Therefore, the safety of electricity use cannot be fully guaranteed for complex application scenarios, and electrical connections through metal contacts will involve many uncertain factors such as circuit and mechanical equipment aging, which will affect the judgment of the state of the object to be detected. Summary of the invention

[0004] The embodiments of the present invention provide an optical transmission sensor device, a sensor monitoring system and a detection method, which are used to solve the technical problems in the prior art of low safety and unstable detection results caused by electrical connection.

[0005] An embodiment of the present invention provides an optical transmission sensor device, including:

[0006] A plug fixing sleeve, both ends of which are open and the plug fixing sleeve is suitable for being fixedly connected to a mounting seat of the to-be-detected component;

[0007] A limit assembly, arranged in the plug fixing sleeve;

[0008] A magnetic unit is detachably arranged at one end of the plug fixing sleeve and abuts against the limit assembly, the magnetic unit is suitable for magnetic connection with the to-be-detected component, and a light reflecting component is fixedly arranged on one side of the magnetic unit facing the limit assembly; wherein,

[0009] It also includes an optical transmission component, which passes through the plug fixing sleeve and the limiting assembly in sequence and is arranged opposite to the light reflecting component to transmit optical signal information related to the relative position of the component to be detected and the mounting seat of the component to be detected.

[0010] According to an optical transmission sensor device of one embodiment of the present invention,

[0011] The limiting assembly includes a collar, an optical transmission component plug at least partially sleeved in the collar, and an elastic component arranged on a side of the optical transmission component plug away from the collar;

[0012] The magnetic attraction unit is in contact with the sleeve ring, and the elastic member is in contact with the optical transmission member plug.

[0013] According to an optical transmission sensor device of an embodiment of the present invention, an optical transmission member channel is opened in the ring, and the optical transmission member passes through the elastic member and the optical transmission member channel and extends to one end of the optical transmission member plug facing the light reflecting member.

[0014] According to an optical transmission sensor device of an embodiment of the present invention, at least one optical transmission component limiting opening is formed on a side of the optical transmission component plug close to the magnetic attraction unit, and the optical transmission component passes through the optical transmission component limiting opening.

[0015] According to an optical transmission sensor device of one embodiment of the present invention, the optical transmission component plug is provided with a limiting step, and the circumferential dimension of the optical transmission component plug close to the magnetic attraction unit is smaller than the circumferential dimension of the side away from the magnetic attraction unit.

[0016] According to an optical transmission sensor device of an embodiment of the present invention, a protruding plate is provided on one side of the plug fixing sleeve, at least one mounting hole is formed on the protruding plate, and the protruding plate is fixedly connected to the mounting seat of the component to be detected by bolts.

[0017] The embodiment of the present invention further provides a sensor monitoring system, comprising: a monitor and the above-mentioned optical transmission sensor device; wherein:

[0018] The monitor transmits a signal through the optical transmission element, and determines the optical signal information related to the relative position of the to-be-detected component with respect to the to-be-detected component mounting seat according to whether a correct optical reflection signal is received.

[0019] According to a sensor monitoring system of one embodiment of the present invention, the monitor includes a control unit and a transmitting unit and a receiving unit respectively connected to the control unit, the control unit controls the transmitting unit to transmit a signal through an optical transmission component, and determines optical signal information related to the relative position of the component to be detected relative to the mounting seat of the component to be detected based on the signal received by the receiving unit.

[0020] According to a sensor monitoring system of one embodiment of the present invention,

[0021] The transmitting unit includes a digital signal sequence generator and a light emitting device, and the receiving unit includes a digital signal sequence detector and a photosensitive device;

[0022] The digital signal sequence generator is used to emit a preset digital signal sequence, the light-emitting device is used to convert the digital signal sequence into a light signal, the photosensitive device converts the light signal into a digital signal sequence, and the digital signal sequence detector is used to detect the digital signal sequence after the light transmission component is reflected.

[0023] The embodiment of the present invention further provides a detection method of a sensor monitoring system, comprising:

[0024] transmitting a digital signal sequence;

[0025] receiving a digital signal sequence;

[0026] The transmitted digital signal sequence is compared with the received digital signal sequence to determine the optical signal information related to the relative position of the to-be-detected component with respect to the to-be-detected component mounting seat.

[0027] In the optical transmission sensor device, sensor monitoring system and detection method provided by the embodiments of the present invention, the magnetic unit can be magnetically connected to the part to be detected, so that the magnetic unit and the plug fixing sleeve can be installed first, so that the optical transmission part and the optical reflection part are in accurate corresponding positions, and then when the part to be detected and the mounting seat of the part to be detected are installed, the magnetic attraction between the magnetic unit and the part to be detected can be used to improve the installation and alignment efficiency of the optical reflection part. When the part to be detected is separated from the mounting seat of the part to be detected, the part to be detected will take away the magnetic unit and the optical reflection part, so that the optical signal sequence after reflection by the optical reflection part is different from the optical signal sequence emitted to the optical reflection part, and then it can be determined that the relative position of the part to be detected and the mounting seat of the part to be detected has changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0029] Figure 1 It is a structural schematic diagram of an embodiment of a sensor monitoring system of the present invention;

[0030] Figure 2 A schematic diagram of the cooperation between the monitor and the optical transmission sensor device in the sensor monitoring system of the present invention;

[0031] Figure 3 It is a schematic diagram of an exploded structure of one state of an embodiment of an optical transmission sensor device of the present invention;

[0032] Figure 4 It is a schematic diagram of an exploded structure of another state of an embodiment of an optical transmission sensor device of the present invention;

[0033] Figure 5 for Figure 4 A schematic diagram of the structure of the optical transmission component plug in the optical transmission sensor device;

[0034] Figure 6 for Figure 3 A cross-sectional view of a state of the optical transmission sensor device shown;

[0035] Figure 7 To use Figure 1 A flow chart of a detection method of a sensor device shown;

[0036] Reference numerals:

[0037]

[0038] DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Please refer to Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an embodiment of a sensor monitoring system of the present invention; Figure 2 It is a schematic diagram of the cooperation between the monitor and the optical transmission sensor device in the sensor monitoring system of the present invention; the present invention provides a sensor monitoring system, including a monitor 50 and an optical transmission sensor device 60. The monitor 50 transmits a signal through the optical transmission component 40, and determines the position information of the component to be detected 70 relative to the mounting seat 80 of the component to be detected based on whether the correct light reflection signal is received. The component to be detected 70 in one embodiment of the present invention can be a cast iron manhole cover for electricity, natural gas and other pipelines on the road surface of an urban area. In other embodiments, the component to be detected 70 can also be any device that needs to be detected whether it is moved or removed, which is not limited here. The optical transmission component 40 can be an optical cable, etc., which is not limited here.

[0041] The monitor 50 includes a control unit 530 and a transmitting unit 510 and a receiving unit 520 respectively connected to the control unit 530. The control unit 530 controls the transmitting unit 510 to transmit a signal through the optical transmission element 40, and determines the position information of the to-be-detected component 70 and the to-be-detected component mounting seat 80 according to the signal received by the receiving unit 520. In one embodiment of the present invention, the signal is a digital signal sequence; the transmitting unit 510 includes a digital signal sequence generator 5110 and a light emitting device 5120, and the receiving unit 520 includes a digital signal sequence detector 5210 and a photosensitive device 5220; the digital signal sequence generator 5110 is used to send a preset digital signal sequence, the light emitting device 5120 is used to convert the digital signal sequence into a light signal, the photosensitive device 5220 converts the light signal into a digital signal sequence, and the digital signal sequence detector 5210 is used to detect the digital signal sequence received by the photosensitive device 5220. Furthermore, the control unit 530 includes a control unit 5310 and a state judgment unit 5320. The control unit 5310 is used to control the digital signal sequence generator 5110 to send a signal, and the state judgment unit 5320 is used to judge the consistency between the received digital signal sequence and the transmitted digital signal sequence. Figure 2 , the digital signal sequence generator 5110 and the digital signal sequence detector 5210 are used to compare the transmitted and received digital signals. For example, in the initial state, the initial distance between the monitor 50 and the part to be detected 70 is d, then the time for the optical signal emitted by the optical transmission component 40 to return through the optical transmission sensor device 60 is 2Td, and the running speed of the light in the optical transmission component 40 is Cf. When the reflected digital signal sequence is consistent with the received digital signal sequence, there is no displacement between the part to be detected 70 and the mounting seat 80 of the part to be detected. If the reflected digital signal sequence is inconsistent with the received digital signal sequence, there is a displacement between the part to be detected 70 and the mounting seat 80 of the part to be detected, that is, the part to be detected 70 is separated from the original installation position of the mounting seat 80 of the part to be detected.

[0042] Please refer to Figure 3 , Figure 4 , Figure 5 as well as Figure 6 , Figure 3 It is a schematic diagram of an exploded structure of one state of an embodiment of an optical transmission sensor device of the present invention; Figure 4 It is a schematic diagram of an exploded structure of another state of an embodiment of an optical transmission sensor device of the present invention; Figure 5 for Figure 4 A schematic diagram of the structure of the optical transmission component plug in the optical transmission sensor device; Figure 6 for Figure 3A cross-sectional view of a state of the optical transmission sensor device shown. Further, the optical transmission sensor device 60 includes a plug fixing sleeve 10, a limit assembly 20, a magnetic unit 30 and an optical transmission member 40, both ends of the plug fixing sleeve 10 are open and the plug fixing sleeve 10 is suitable for being fixedly connected with the mounting seat 80 of the detected part; the limit assembly 20 is arranged in the plug fixing sleeve 10; the magnetic unit 30 is detachably arranged at one end of the plug fixing sleeve 10 and abuts against the limit assembly 20, the magnetic unit 30 is suitable for magnetic connection with the detected part 70, and a light reflecting member 310 is fixedly arranged on the side of the magnetic unit 30 facing the limit assembly 20; and also includes an optical transmission member 40, which passes through the plug fixing sleeve 10 and the limit assembly 20 in sequence and is arranged opposite to the light reflecting member 310 to transmit optical signal information related to the relative position of the detected part 70 and the mounting seat 80 of the detected part. The bottom of the detected part 70 is provided with a magnetic material, which can be magnetically attracted to the magnetic unit 30. Then, the plug fixing sleeve 10 can be installed first, and then the magnetic unit 30 can be sleeved in the plug fixing sleeve 10, and then when the to-be-detected part 70 and the to-be-detected part mounting seat 80 are matched, the magnetic unit 30 can always keep the positions of the light reflecting part 310 and the light transmitting part 40 corresponding to each other, thereby improving the detection efficiency and accuracy. And there is no need to set a fixed installation area on the to-be-detected part 70, thereby saving the alignment and calibration time of the light reflecting part 310 and the light transmitting part 40.

[0043] The limiting assembly 20 includes a collar 210, an optical transmission component plug 220 at least partially sleeved in the collar 210, and an elastic member 230 disposed on the side of the optical transmission component plug 220 away from the collar 210; the magnetic unit 30 abuts against the collar 210, and the elastic member 230 abuts against the optical transmission component plug 220. That is, when the to-be-detected component 70 and the to-be-detected component mounting seat 80 are matched and installed, that is, the current to-be-detected component 70 and the to-be-detected component mounting seat 80 are in an interval setting with a certain distance, and then the magnetic unit 30 will slide a certain distance along the plug fixing sleeve 10, and at this time, the magnetic unit 30 and the optical transmission component 40 are in an interval setting state with a certain distance, and when the installation between the to-be-detected component 70 and the to-be-detected component mounting seat 80 is completed, the magnetic unit 30 will move toward the direction of the optical transmission component plug 220, thereby abutting or approaching the optical transmission component plug 220 to complete the installation. The setting of the elastic member 230 can make the ring 210 and the optical transmission member plug 220 in an elastic abutment state to improve the installation stability of the optical transmission member plug 220, and can elastically buffer the installation of the magnetic unit 30 to prevent the magnetic unit 30 from causing pressure damage to the detection end of the optical transmission member 40. In one embodiment of the present invention, the magnetic unit 30 can be a magnet.

[0044] An optical transmission component channel 2110 is provided in the ring 210, and the optical transmission component 40 passes through the elastic component 230 and the optical transmission component channel 2110 and extends to one end of the optical transmission component plug 220 facing the light reflecting component 310. Furthermore, at least one optical transmission component limiting opening 2210 is provided on the side of the optical transmission component plug 220 close to the magnetic suction unit 30, and the optical transmission component 40 passes through the optical transmission component limiting opening 2210. The setting of the optical transmission component limiting opening 2210 can limit the position of the optical transmission component 40. In one embodiment of the present invention, the number of optical transmission components 40 is two, and then two optical transmission component limiting openings 2210 are provided on the ring 210. In other embodiments, the number of optical transmission components 40 can also be one, for example, when sending and receiving signals simultaneously through one wire core, one optical transmission component limiting opening 2210 can be provided on the corresponding ring 210.

[0045] In one embodiment of the present invention, the optical transmission component plug 220 is provided with a limiting step, and the circumferential dimension of the optical transmission component plug 220 on the side close to the magnetic unit 30 is smaller than the circumferential dimension on the side away from the magnetic unit 30. That is, the optical transmission component plug 220 provided with the limiting step has a limiting surface, and the limiting surface can abut against an end surface of the ring 210 away from the magnetic unit 30. For example, when the magnetic unit 30 abuts against the ring 210, the bottom surface of the ring 210 will abut against the above-mentioned limiting surface, thereby compressing the elastic member 230, thereby under the action of the elastic member 230, the ring 210 and the optical transmission component plug 220 and the magnetic unit 30 are all in an elastic abutment state, so that once the to-be-detected component 70 is separated from the to-be-detected component mounting seat 80, the ring 210 will buffer the force of the optical transmission component plug 220 popping outward. In one embodiment of the present invention, when the magnetic unit 30 is separated from the plug fixing sleeve 10, the elastic member 230 recovers from the compressed state, and when the friction force between the ring 210 and the plug fixing sleeve 10 is greater than the deformation force of the elastic member 230, the ring 210 acts as a limit on the optical transmission component plug 220, thereby preventing the ring 210 and the optical transmission component plug 220 from separating from the plug fixing sleeve 10.

[0046] A protruding plate 110 is provided on one side of the plug fixing sleeve 10, and at least one mounting hole 1110 is opened on the protruding plate 110. The protruding plate 110 is fixedly connected to the mounting seat 80 of the part to be detected by bolts. It should be noted that in one embodiment of the present invention, the protruding plate 110 and the part to be detected 70 are fixedly connected by bolts. In other embodiments, welding or bonding may also be used. For example, the protruding plate 110 and the mounting seat 80 of the part to be detected may be welded or bonded to fix them, which is not limited here.

[0047] Please refer to Figure 7 , Figure 7 To use Figure 1In one embodiment of the present invention, a detection method based on the above-mentioned sensor monitoring system is also provided, comprising:

[0048] S110: transmitting a digital signal sequence;

[0049] That is, a digital signal sequence is emitted by a digital signal sequence generator, and the light-emitting device converts the digital signal sequence into an optical signal, which is then transmitted through an optical transmission element.

[0050] S120: receiving a digital signal sequence;

[0051] The light signal reflected by the light reflecting element is converted into a digital signal through the photosensitive device and the digital signal sequence detector to be compared with the emitted digital signal.

[0052] S130: Compare the transmitted digital signal sequence with the received digital signal sequence to determine the optical signal information related to the relative position of the component to be detected and the mounting seat of the component to be detected.

[0053] If the received digital signal sequence is the same as the transmitted digital signal sequence, then there is no displacement between the detected component and the mounting bracket of the detected component. If the received digital signal sequence is different from the transmitted digital signal sequence, then the detected component is separated from the mounting bracket of the detected component.

[0054] In summary, the present invention can determine the position information of the part to be detected by the cooperation between the optical transmission part and the optical reflection part, so that no electrical connection parts are required around the part to be detected, thereby improving the safety of the part to be detected during the detection process. And the magnetic unit is coordinated with the part to be detected to ensure that during the installation of the part to be detected and the mounting seat of the part to be detected, the optical reflection part on the magnetic unit is always aligned with the optical transmission part, thereby improving the accuracy of the detection.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical transmission sensor device, characterized in that: include: A plug fixing sleeve, both ends of which are open and the plug fixing sleeve is suitable for being fixedly connected to a mounting seat of the to-be-detected component; A limit assembly, arranged in the plug fixing sleeve; A magnetic unit is detachably arranged at one end of the plug fixing sleeve and abuts against the limit assembly, the magnetic unit is suitable for magnetic connection with the to-be-detected component, and a light reflecting component is fixedly arranged on one side of the magnetic unit facing the limit assembly; wherein, It also includes an optical transmission component, which passes through the plug fixing sleeve and the limiting assembly in sequence and is arranged opposite to the light reflecting component to transmit optical signal information related to the relative position of the component to be detected and the mounting seat of the component to be detected.

2. The optical transmission sensor device according to claim 1, characterized in that: The limiting assembly includes a collar, an optical transmission component plug at least partially sleeved in the collar, and an elastic component arranged on a side of the optical transmission component plug away from the collar; The magnetic attraction unit is in contact with the sleeve ring, and the elastic member is in contact with the optical transmission member plug.

3. The optical transmission sensor device according to claim 2, characterized in that: A light transmission component channel is provided in the sleeve ring. The light transmission component passes through the elastic component and the light transmission component channel and extends to one end of the light transmission component plug facing the light reflection component.

4. The optical transmission sensor device according to claim 3, characterized in that: The optical transmission component plug is provided with at least one optical transmission component limiting opening on one side close to the magnetic attraction unit, and the optical transmission component passes through the optical transmission component limiting opening.

5. The optical transmission sensor device according to claim 2, characterized in that: The optical transmission component plug is provided with a limiting step, and the circumferential dimension of the optical transmission component plug on a side close to the magnetic attraction unit is smaller than the circumferential dimension of the side away from the magnetic attraction unit.

6. The optical transmission sensor device according to claim 1, characterized in that: A protruding plate is provided on one side of the plug fixing sleeve, at least one mounting hole is opened on the protruding plate, and the protruding plate is fixedly connected to the mounting seat of the to-be-detected part by bolts.

7. A sensor monitoring system, characterized in that: include: A monitor and an optical transmission sensor device as described in any one of claims 1 to 6; wherein, The monitor transmits a signal through the optical transmission element, and determines the optical signal information related to the relative position of the to-be-detected component with respect to the to-be-detected component mounting seat according to whether a correct optical reflection signal is received.

8. The sensor monitoring system according to claim 7, characterized in that: The monitor includes a control unit and a transmitting unit and a receiving unit respectively connected to the control unit. The control unit controls the transmitting unit to transmit a signal through an optical transmission component, and determines optical signal information related to the relative position of the component to be detected relative to the mounting seat of the component to be detected based on the signal received by the receiving unit.

9. The sensor monitoring system according to claim 8, characterized in that: The transmitting unit includes a digital signal sequence generator and a light emitting device, and the receiving unit includes a digital signal sequence detector and a photosensitive device; The digital signal sequence generator is used to emit a preset digital signal sequence, the light-emitting device is used to convert the digital signal sequence into a light signal, the photosensitive device converts the light signal into a digital signal sequence, and the digital signal sequence detector is used to detect the digital signal sequence after the light transmission component is reflected.

10. A detection method based on the sensor monitoring system according to any one of claims 7 to 9, characterized in that: include: transmitting a digital signal sequence; receiving a digital signal sequence; The transmitted digital signal sequence is compared with the received digital signal sequence to determine the optical signal information related to the relative position of the to-be-detected component with respect to the to-be-detected component mounting seat.

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