Trolley speed measuring device and using method thereof

Abstract

The invention discloses a trolley speed measuring device and a using method thereof, and belongs to the technical field of trolley speed measurement. The measuring mechanism is installed on the bottom box, is used for measuring the speed of the trolley and comprises a photoelectric switch, a barrel and a supporting frame, the supporting frame is arranged on the photoelectric switch in a sleeving mode and is fixedly connected with the photoelectric switch, the supporting frame is arranged in the barrel and is in threaded connection with the barrel, and the transparent plate is installed in the barrel in an embedded mode; the cleaning device is used for cleaning sundries on the transparent plate; the scraping component is mounted on the bottom box and is used for wiping sundries on the transparent plate; the driving assembly is mounted on the rack and used for driving the photoelectric switch to do linear motion in the vertical direction and rotational motion in the horizontal direction; compared with the existing industrial measurement and calculation method, the method provided by the invention has stronger anti-interference performance, the photoelectric switch is low in price, and various interference sources can be greatly reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of trolley speed measurement, and in particular relates to a trolley speed measurement device and a use method thereof. Background Art

[0002] In the prior art, the absolute value encoder of the motor's rotation direction is generally used to measure the displacement distance of the motor, and then the upper DCS system calculates it to obtain the trolley speed;

[0003] Cultural tourism signboards indicate the location and routes of various scenic spots, public facilities and service facilities in the scenic area from the perspective of tourists. They include direction signboards and place signboards, which work together to mark the places that must be marked, which is conducive to improving service efficiency.

[0004] Although the above method has high accuracy, the use of analog signals is more susceptible to high temperature and electromagnetic interference at the sintering trolley equipment site, affecting signal transmission and has a shorter lifespan. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a trolley speed measuring device and a method of using the same, which solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A trolley speed measuring device includes:

[0007] The bottom box has a rack installed on the upper end for carrying components;

[0008] The measuring mechanism is installed on the bottom box and is used for measuring the trolley speed. It includes a photoelectric switch, a cylinder and a support frame. The support frame is sleeved on the photoelectric switch and fixedly connected to the photoelectric switch. The support frame is arranged in the cylinder and threadedly connected to the cylinder. The transparent plate is embedded and installed in the cylinder. It also includes:

[0009] The air cleaning component is installed on the cylinder body and is used to clean the debris on the transparent plate;

[0010] A scraping assembly, installed on the bottom box, for wiping the debris on the transparent plate;

[0011] The drive assembly is installed on the frame and is used to drive the photoelectric switch to perform linear motion in the vertical direction and rotational motion in the horizontal direction.

[0012] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0013] Further technical solution: The air cleaning component includes a bellows, a spray plate and an air pipe. The bellows is embedded and installed on the cylinder, and the spray plate is embedded and installed on the bellows. One end of the air pipe passes through the cylinder and the bellows and is fixedly connected to the cylinder. The other end of the air pipe is fixedly connected to an air pump, and a first valve component is installed in the air pipe.

[0014] Further technical solution: The driving assembly includes an electric slide, a guide rod, a second motor and a connecting block. The two ends of the guide rod are respectively fixedly connected to the frame and the bottom box. The electric slide is slidably installed on the guide rod. The second motor is embedded in the electric slide. The output shaft of the electric slide is fixedly connected to the connecting block, and the connecting block is fixedly connected to the cylinder.

[0015] Further technical solution: the scraping assembly includes a sponge wiping cylinder and a rotating cylinder, the sponge wiping cylinder is embedded and installed on the rotating cylinder, and the rotating cylinder is rotatably connected to the bottom box, and also includes:

[0016] The rotating assembly is installed in the bottom box and is used to drive the rotating drum to drive the sponge cleaning drum to perform vertical rotational movement;

[0017] The liquid supply component is installed on the bottom box and is used to wet the sponge wiper.

[0018] Further technical solution: the liquid supply assembly includes a water tank, a water pipe, a swivel and a sponge core column. The water tank is detachably mounted on the bottom box. The swivel is rotatably connected to the rotating drum. The two ends of the water pipe pass through the water tank and the swivel respectively. The two ends of the water pipe are fixedly connected to the water tank and the swivel respectively. The sponge core column is embedded in the water pipe and one end of it contacts the sponge wiping drum. The rotating drum is provided with a groove for prompting the sponge core column located in the water pipe to pass through.

[0019] Further technical solution: The rotating assembly includes a rotating shaft, a first motor and a transmission pair, one end of the rotating shaft is fixedly connected to the bottom of the drum, the other end of the rotating shaft is rotatably connected to the bottom box, the first motor is detachably connected to the frame, and the output shaft of the first motor is transmission-connected to the rotating shaft through the transmission pair.

[0020] Further technical solution: A placement groove for placing the trachea is provided on the connecting block.

[0021] The method for using the above-mentioned trolley speed measuring device comprises the following steps:

[0022] S1. The relevant technicians place the bottom box on one side of the trolley equipment path and adjust the height of the photoelectric switch according to the height of the trolley. When the trolley equipment passes by, the photoelectric signal of the switching signal of the photoelectric switch is used to detect the number of wheels of the trolley equipment. The photoelectric signal time is measured through the PLC to calculate the speed of the trolley.

[0023] S2. The matching air cleaning component automatically opens the air source to purge the transparent plate according to the photoelectric signal to clean the surface of the transparent plate;

[0024] S3. If there are still debris on the transparent plate after being purged by the wind cleaning component, the area information of the debris and the distance information from the center point of the transparent plate are obtained through the visual detection device installed inside the cylinder, and the obtained area information and distance information are compared with the preset area threshold and distance threshold. If at least one of the area information and the distance information is not within the corresponding area threshold and the distance threshold, the second motor is started to drive the connecting block to drive the cylinder to rotate in the horizontal direction, and the cylinder further drives the transparent plate to rotate in the horizontal direction, so that the transparent plate faces the scraping component. At this time, the electric slide is started, and the electric slide drives the cylinder to perform linear movement in the vertical direction, so that the transparent plate contacts the sponge wiper in the scraping component. At this time, the first motor is used to cooperate with the transmission pair to drive the rotating shaft to rotate in the vertical direction, and the rotating shaft drives the rotating drum to drive the sponge wiper to rotate synchronously, and the sponge wiper is used to scrape the transparent plate;

[0025] S4. Under the condition that the area information and the distance information are within the corresponding area threshold and the distance threshold, the area information and the distance information are dimensionlessly processed and then introduced into the obstacle assessment model to output the obstacle assessment coefficient. If the obtained obstacle assessment coefficient is not within the preset coefficient threshold, the second motor drives the connecting block to drive the cylinder to rotate in the horizontal direction, and the cylinder further drives the transparent plate to rotate in the horizontal direction, so that the transparent plate faces the scraping assembly. At this time, the electric slide is started, and the electric slide drives the cylinder to perform linear movement in the vertical direction, so that the transparent plate contacts the sponge wiper in the scraping assembly. At this time, the first motor cooperates with the transmission pair to drive the rotating shaft to rotate in the vertical direction, and the rotating shaft drives the rotating cylinder to drive the sponge wiper to rotate synchronously, and the sponge wiper is used to scrape the transparent plate;

[0026] S5, prompting the photoelectric switch to reset, and repeating steps S1 to S4.

[0027] Further technical solution: The obstacle assessment model is expressed as:

[0028]

[0029] Wherein, ZA(S,D) represents the obstacle assessment coefficient, S represents the area information, D represents the distance information, α represents the area information impact factor, β represents the distance information impact factor, 0.52≤α≤0.86, 0.70≤β≤0.95.

[0030] Beneficial Effects

[0031] The present invention provides a trolley speed measuring device and a method for using the same, which have the following beneficial effects compared with the prior art:

[0032] 1. The relevant technicians place the bottom box on one side of the trolley equipment path and adjust the height of the photoelectric switch according to the height of the trolley. When the trolley equipment passes by, the photoelectric signal of the switching signal of the photoelectric switch is used to detect the number of wheels of the trolley equipment. The photoelectric signal time is measured through the PLC to calculate the speed of the trolley. At the same time, the matching wind cleaning component can solve the damage to the equipment sensor caused by high temperature and dust on site, and has stronger anti-interference ability compared with the current industry measurement method;

[0033] 2. When the trolley equipment moves, the matching air cleaning component automatically opens the air source according to the photoelectric signal to blow the transparent plate to clean the surface of the transparent plate. If there are still debris on the transparent plate under the blowing of the air cleaning component, the second motor is used to drive the connecting block to drive the cylinder to rotate in the horizontal direction, and the cylinder further drives the transparent plate to rotate in the horizontal direction, so that the transparent plate faces the scraping component. At this time, the electric slide is started, and the electric slide drives the cylinder to perform linear movement in the vertical direction, so that the transparent plate contacts the sponge wiper in the scraping component. At this time, the first motor is used to cooperate with the transmission pair to drive the rotating shaft to rotate in the vertical direction. The rotating shaft drives the rotating cylinder to drive the sponge wiper to rotate synchronously, and the sponge wiper is used to scrape the transparent plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 3 For the present invention Figure 2 A-section structure enlarged schematic diagram.

[0037] Figure 4 It is a schematic diagram of the structure of the measuring mechanism of the present invention.

[0038] Figure 5 It is a schematic structural diagram of the scraping assembly of the present invention.

[0039] Notes on the accompanying drawings: 1. bottom box; 2. frame; 3. measuring mechanism; 301. photoelectric switch; 302. cylinder; 303. support frame; 304. bellows; 305. spray plate; 306. transparent plate; 307. scraping assembly; 3071. sponge wiping cylinder; 3072. rotating cylinder; 3073. rotating assembly; 30731. rotating shaft; 30732. first motor; 30733. transmission pair; 3074. liquid supply assembly; 30741. water tank; 30742. water pipe; 30743. swivel; 308. air pipe; 4. driving assembly; 401. electric slide; 402. guide rod; 403. second motor; 404. connecting block. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0042] See also Figure 1 to Figure 5 , provided in one embodiment of the present invention, is a trolley speed measuring device, comprising:

[0043] The bottom box 1 has a frame 2 installed on the upper end for carrying components;

[0044] The measuring mechanism 3 is installed on the bottom box 1 and is used for measuring the trolley speed. It includes a photoelectric switch 301, a cylinder 302 and a support frame 303. The support frame 303 is sleeved on the photoelectric switch 301 and fixedly connected to the photoelectric switch 301. The support frame 303 is arranged in the cylinder 302 and is threadedly connected to the cylinder 302. The transparent plate 306 is embedded and installed in the cylinder 302. It also includes:

[0045] The air cleaning component is installed on the cylinder 302 and is used to clean the debris on the transparent plate 306;

[0046] The scraping assembly 307 is installed on the bottom box 1 and is used to wipe the debris on the transparent plate 306;

[0047] The driving assembly 4 is mounted on the frame 2 and is used to drive the photoelectric switch 301 to perform linear motion in the vertical direction and rotational motion in the horizontal direction.

[0048] Preferably, the air cleaning component includes a bellows 304, a spray plate 305 and an air pipe 308, the bellows 304 is embedded and installed on the cylinder 302, the spray plate 305 is embedded and installed on the bellows 304, one end of the air pipe 308 passes through the cylinder 302 and the bellows 304 and is fixedly connected to the cylinder 302, the other end of the air pipe 308 is fixedly connected to an air pump (not marked in the figure), and a first valve member (not marked in the figure) is installed in the air pipe 308. The purpose of this arrangement is that when there are debris on the transparent plate 306, the bellows 304 is inflated by the air pump, and the gas is caused to be sprayed out from the spray plate 305 to clean the surface of the transparent plate 306.

[0049] Preferably, the driving assembly 4 includes an electric slide 401, a guide rod 402, a second motor 403 and a connecting block 404, the two ends of the guide rod 402 are fixedly connected to the frame 2 and the bottom box 1 respectively, the electric slide 401 is slidably installed on the guide rod 402, the second motor 403 is embedded in the electric slide 401, the output shaft of the electric slide 401 is fixedly connected to the connecting block 404, and the connecting block 404 is fixedly connected to the cylinder 302. The purpose of this arrangement is to utilize The second motor 403 drives the connecting block 404 to drive the cylinder 302 to rotate in the horizontal direction, and the cylinder 302 further drives the transparent plate 306 to rotate in the horizontal direction, causing the transparent plate 306 to face the scraping assembly 307. At this time, the electric slide 401 is started, and the electric slide 401 drives the cylinder 302 to perform linear movement in the vertical direction, causing the transparent plate 306 to resist the sponge wiper 3071 in the scraping assembly 307, and the scraping assembly 307 is used to scrape and clean the transparent plate 306.

[0050] Preferably, the scraping assembly 307 comprises a sponge wiping cylinder 3071 and a rotating cylinder 3072, wherein the sponge wiping cylinder 3071 is embedded and installed on the rotating cylinder 3072, and the rotating cylinder 3072 is rotatably connected to the bottom box 1, and further comprises:

[0051] The rotating assembly 3073 is installed in the bottom box 1 and is used to drive the rotating drum 3072 to drive the sponge cleaning drum 3071 to perform a vertical rotation movement;

[0052] The liquid supply component 3074 is installed on the bottom box 1 and is used to wet the sponge wiper 3071;

[0053] The liquid supply component 3074 comprises a water tank 30741, a water pipe 30742, a swivel 30743 and a sponge core column (not shown in the figure). The water tank 30741 is detachably mounted on the bottom box 1. The swivel 30743 is rotatably connected to the rotating drum 3072. The two ends of the water pipe 30742 pass through the water tank 30741 and the swivel 30743 respectively. The two ends of the water pipe 30742 are respectively fixedly connected to the water tank 30741 and the swivel 30743. The sponge core column is embedded in the water pipe 30742 and one end thereof abuts against the sponge wiper 3071. The rotating drum 3072 is provided with a groove (not shown in the figure) for causing the sponge core column in the water pipe 30742 to pass through. The purpose of this arrangement is to use the sponge core column to introduce the liquid in the water tank 30741 into the sponge wiper 3071 to wet the sponge wiper 3071.

[0054] Among them, the rotating assembly 3073 includes a rotating shaft 30731, a first motor 30732 and a transmission pair 30733, one end of the rotating shaft 30731 is fixedly connected to the bottom of the rotating drum 3072, and the other end of the rotating shaft 30731 is rotatably connected to the bottom box 1, the first motor 30732 is detachably connected to the frame 2, and the output shaft of the first motor 30732 is transmission-connected to the rotating shaft 30731 through the transmission pair 30733. The purpose of this arrangement is to use the first motor 30732 to cooperate with the transmission pair 30733 to push the rotating shaft 30731 to rotate in the vertical direction, the rotating shaft 30731 pushes the rotating drum 3072 to drive the sponge wiper 3071 to rotate synchronously, and the sponge wiper 3071 is used to scrape the transparent plate 306.

[0055] Preferably, a placement groove for placing the air pipe 308 is provided on the connecting block 404 .

[0056] In the embodiment of the present invention, the relevant technicians place the bottom box 1 on one side of the trolley equipment path, and adjust the height of the photoelectric switch 301 according to the height of the trolley. When the trolley equipment passes by, the photoelectric signal of the switching signal of the photoelectric switch 301 is used to detect the number of wheels of the trolley equipment, and the photoelectric signal time is measured by PLC to calculate the speed of the trolley. When the trolley equipment moves, the matching air cleaning component automatically opens the air source according to the photoelectric signal to purge the transparent plate 306, and can cool down 302 and 306, and can clean the surface of the transparent plate 306. If there are still debris on the transparent plate 306 under the purge of the air cleaning component, the second motor 403 is used to drive the connecting block 404. The cylinder 302 is driven to rotate in the horizontal direction, and the cylinder 302 further drives the transparent plate 306 to rotate in the horizontal direction, so that the transparent plate 306 faces the scraping assembly 307. At this time, the electric slide 401 is started, and the electric slide 401 drives the cylinder 302 to perform linear movement in the vertical direction, so that the transparent plate 306 is pushed against the sponge wiper cylinder 3071 in the scraping assembly 307. At this time, the first motor 30732 is used to cooperate with the transmission pair 30733 to push the rotating shaft 30731 to rotate in the vertical direction. The rotating shaft 30731 pushes the rotating cylinder 3072 to drive the sponge wiper cylinder 3071 to rotate synchronously, and the sponge wiper cylinder 3071 is used to scrape the transparent plate 306.

[0057] The method for using the above-mentioned trolley speed measuring device comprises the following steps:

[0058] S1. The relevant technicians place the bottom box 1 on one side of the trolley equipment path, and adjust the height of the photoelectric switch 301 according to the height of the trolley. When the trolley equipment passes by, the photoelectric signal of the switch quantity signal of the photoelectric switch 301 is used to detect the number of wheels of the trolley equipment, and the photoelectric signal time is measured by PLC to calculate the trolley speed;

[0059] S2. The matching air cleaning component automatically opens the air source according to the photoelectric signal to purge the transparent plate 306 to clean the surface of the transparent plate 306;

[0060] S3. If there are still debris on the transparent plate 306 after being purged by the air cleaning component, the area information of the debris and the distance information from the center point of the transparent plate 306 are obtained by the visual detection device installed inside the cylinder 302, and the obtained area information and distance information are compared with the preset area threshold and distance threshold. If at least one of the area information and the distance information is not within the corresponding area threshold and distance threshold, the second motor 403 is started to drive the connecting block 404 to drive the cylinder 302 to rotate in the horizontal direction, and the cylinder 302 further drives the transparent plate 306. The transparent plate 306 is rotated in the horizontal direction to face the scraping assembly 307. At this time, the electric slide 401 is started, and the electric slide 401 drives the cylinder 302 to perform linear motion in the vertical direction, so that the transparent plate 306 contacts the sponge wiper cylinder 3071 in the scraping assembly 307. At this time, the first motor 30732 cooperates with the transmission pair 30733 to drive the rotating shaft 30731 to rotate in the vertical direction. The rotating shaft 30731 drives the rotating cylinder 3072 to drive the sponge wiper cylinder 3071 to rotate synchronously, and the sponge wiper cylinder 3071 is used to scrape the transparent plate 306;

[0061] S4. Under the condition that the area information and the distance information are within the corresponding area threshold and the distance threshold, the area information and the distance information are dimensionlessly processed and then imported into the obstacle assessment model to output the obstacle assessment coefficient. If the obtained obstacle assessment coefficient is not within the preset coefficient threshold, the second motor 403 drives the connecting block 404 to drive the cylinder 302 to rotate in the horizontal direction, and the cylinder 302 further drives the transparent plate 306 to rotate in the horizontal direction, so that the transparent plate 306 faces the scraping component 307. When the electric slide 401 is started, the electric slide 401 drives the cylinder 302 to perform linear motion in the vertical direction, so that the transparent plate 306 contacts the sponge cylinder 3071 in the scraping assembly 307. At this time, the first motor 30732 cooperates with the transmission pair 30733 to push the shaft 30731 to rotate in the vertical direction. The shaft 30731 pushes the cylinder 3072 to drive the sponge cylinder 3071 to rotate synchronously, and the sponge cylinder 3071 is used to scrape the transparent plate 306. The obstacle assessment model is expressed as follows:

[0062]

[0063] Where ZA(S,D) represents the obstacle assessment coefficient, S represents the area information, D represents the distance information, α represents the area information impact factor, β represents the distance information impact factor, 0.52≤α≤0.86, 0.70≤β≤0.95;

[0064] S5, causing the photoelectric switch 301 to reset, and repeating steps S1 to S4.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trolley speed measuring device and a method of using the same, characterized in that: include: A bottom box (1) has a frame (2) mounted on its upper end for carrying components; The measuring mechanism (3) is installed on the bottom box (1) and is used for measuring the speed of the trolley. The measuring mechanism (3) comprises a photoelectric switch (301), a cylinder (302) and a support frame (303). The support frame (303) is sleeved on the photoelectric switch (301) and fixedly connected to the photoelectric switch (301). The support frame (303) is arranged in the cylinder (302) and is threadedly connected to the cylinder (302). The transparent plate (306) is embedded and installed in the cylinder (302). The measuring mechanism (3) further comprises: An air cleaning component is installed on the cylinder (302) and is used to clean the debris on the transparent plate (306); A scraping assembly (307) is installed on the bottom box (1) and is used to wipe the debris on the transparent plate (306); The driving assembly (4) is mounted on the frame (2) and is used to drive the photoelectric switch (301) to perform linear motion in the vertical direction and rotational motion in the horizontal direction.

2. The trolley speed measuring device according to claim 1, characterized in that: The air cleaning component comprises a bellows (304), a spray plate (305) and an air pipe (308); the bellows (304) is embedded and installed on the cylinder (302); the spray plate (305) is embedded and installed on the bellows (304); one end of the air pipe (308) passes through the cylinder (302) and the bellows (304) and is fixedly connected to the cylinder (302); the other end of the air pipe (308) is fixedly connected to an air pump; a first valve member is installed in the air pipe (308).

3. The trolley speed measuring device according to claim 2, characterized in that: The driving assembly (4) comprises an electric slide (401), a guide rod (402), a second motor (403) and a connecting block (404); the two ends of the guide rod (402) are fixedly connected to the frame (2) and the bottom box (1) respectively; the electric slide (401) is slidably mounted on the guide rod (402); the second motor (403) is embedded in the electric slide (401); the output shaft of the electric slide (401) is fixedly connected to the connecting block (404); and the connecting block (404) is fixedly connected to the cylinder (302).

4. The trolley speed measuring device according to claim 3, characterized in that: The scraping assembly (307) comprises a sponge wiping cylinder (3071) and a rotating cylinder (3072), wherein the sponge wiping cylinder (3071) is embedded and installed on the rotating cylinder (3072), and the rotating cylinder (3072) is rotatably connected to the bottom box (1), and further comprises: The rotating assembly (3073) is installed in the bottom box (1) and is used to drive the rotating drum (3072) to drive the sponge cleaning drum (3071) to perform a rotating motion in a vertical direction; The liquid supply assembly (3074) is installed on the bottom box (1) and is used to wet the sponge cleaning tube (3071).

5. The trolley speed measuring device according to claim 4, characterized in that: The liquid supply component (3074) comprises a water tank (30741), a water pipe (30742), a swivel (30743) and a sponge core column. The water tank (30741) is detachably mounted on the bottom box (1). The swivel (30743) is rotatably connected to the rotating drum (3072). The two ends of the water pipe (30742) respectively pass through the water tank (30741) and the swivel (30743). The two ends of the water pipe (30742) are respectively fixedly connected to the water tank (30741) and the swivel (30743). The sponge core column is embedded in the water pipe (30742) and one end thereof contacts the sponge wiping drum (3071). The rotating drum (3072) is provided with a slot for urging the sponge core column in the water pipe (30742) to pass through.

6. The trolley speed measuring device according to claim 5, characterized in that: The rotating assembly (3073) comprises a rotating shaft (30731), a first motor (30732) and a transmission pair (30733); one end of the rotating shaft (30731) is fixedly connected to the bottom of the rotating drum (3072); the other end of the rotating shaft (30731) is rotatably connected to the bottom box (1); the first motor (30732) is detachably connected to the frame (2); and the output shaft of the first motor (30732) is transmission-connected to the rotating shaft (30731) via the transmission pair (30733).

7. The trolley speed measuring device according to claim 6, characterized in that: The connection block (404) is provided with a placement groove for placing the air pipe (308).

8. The method for using the trolley speed measuring device according to claim 6, characterized in that: The following steps are involved: S1. The relevant technicians place the bottom box (1) on one side of the trolley equipment path, and adjust the height of the photoelectric switch (301) according to the height of the trolley. When the trolley equipment passes by, the photoelectric signal of the switch quantity signal of the photoelectric switch (301) is used to detect the number of wheels of the trolley equipment, and the photoelectric signal time is measured by PLC to calculate the speed of the trolley; S2, the matching air cleaning component automatically opens the air source according to the photoelectric signal to purge the transparent plate (306) to clean the surface of the transparent plate (306); S3. If there are still debris on the transparent plate (306) after being purged by the air cleaning component, the area information of the debris and the distance information from the center point of the transparent plate (306) are obtained by a visual detection device installed inside the cylinder (302), and the obtained area information and distance information are compared with the preset area threshold and distance threshold. If at least one of the area information and the distance information is not within the corresponding area threshold and distance threshold, the second motor (403) is started to drive the connecting block (404) to drive the cylinder (302) to rotate in the horizontal direction, and the cylinder (302) further drives the transparent plate (306) to rotate in the horizontal direction. The electric slide (401) is started, and the electric slide (401) drives the cylinder (302) to perform linear motion in the vertical direction, so that the transparent plate (306) contacts the sponge wiper cylinder (3071) in the scraper assembly (307). At this time, the first motor (30732) cooperates with the transmission pair (30733) to drive the rotating shaft (30731) to rotate in the vertical direction, and the rotating shaft (30731) drives the rotating cylinder (3072) to drive the sponge wiper cylinder (3071) to rotate synchronously, and the sponge wiper cylinder (3071) is used to scrape the transparent plate (306); S4. Under the condition that the area information and the distance information are within the corresponding area threshold and distance threshold, the area information and the distance information are dimensionlessly processed and then introduced into the obstacle assessment model to output the obstacle assessment coefficient. If the obtained obstacle assessment coefficient is not within the preset coefficient threshold, the second motor (403) drives the connecting block (404) to drive the cylinder (302) to rotate in the horizontal direction, and the cylinder (302) further drives the transparent plate (306) to rotate in the horizontal direction, so that the transparent plate (306) faces the scraping component (307). When the electric slide (401) is started, the electric slide (401) drives the cylinder (302) to perform linear motion in the vertical direction, so that the transparent plate (306) contacts the sponge wiper cylinder (3071) in the scraping assembly (307). At this time, the first motor (30732) cooperates with the transmission pair (30733) to drive the rotating shaft (30731) to rotate in the vertical direction. The rotating shaft (30731) drives the rotating cylinder (3072) to drive the sponge wiper cylinder (3071) to rotate synchronously, and the sponge wiper cylinder (3071) is used to scrape the transparent plate (306); S5, causing the photoelectric switch (301) to reset, and repeating steps S1 to S4.

9. The method for using the trolley speed measuring device according to claim 8, characterized in that: The barrier assessment model is expressed as: Wherein, ZA(S,D) represents the obstacle assessment coefficient, S represents the area information, D represents the distance information, α represents the area information impact factor, β represents the distance information impact factor, 0.52≤α≤0.86, 0.70≤β≤0.95.

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